Adding & subtracting fractions 


https://www.youtube.com/watch?v=DYcqDfgpveM

👍 twiningenious, shemet, anchik90, dmitruilpushk, fetoff, andreivvaov, chatscky, allafihn, livkristi, amochckins, galiasurov, popupeva, romanyy, saunina, maniken, perchik, kubanien, darkknigt, balaandy, vaipelnach, belblannsanonob, samitlyak, aleksykas, kassrybak, oliverquin, ulyans, vikindala, oksanakar, ellarahn, lysichenko, fatsekhev, kantsh, klochul, alinskiy, khorovas, eterov, gorodovaj, owenmatthew, money88, potroshok, tortilla, kolnowich, nikolaev, patesa, isselev, viksdrobokl, lizalionka, nikitaserov, deikstorozh, nedovsckay, ryanevdan, xusainova, natullyubavina, logashchuk, kazyu, azievzhan, anastasiakula, analanim, derevtso, shefer, kwgof2gpkp8, boss.a1dakov, skimshevich, metlak, shchoturakh, oyulimikanannab, lexatri, smithp, pradochka, arenov, dr0zd, petrpanckof, papabarov, steem-lady, otintsow, safilin, abernaz, askretkova, skolin, mponajotova, zhene, ekena, chenko, lkazakova281, gudkova, cherisegentry, otkunev, kuzmen, zeversev, francian, davidchakvitak, carelinat, briancain, irrina, ostechely, oriswest, aisabirenov, yakovorretr, nikanor, dimidrol, gladyshev, gazseer, kanfileev, alladinka, ifnishi, vikkto, allazd, reklamsinchi, qyj8avsifw0a, kazakov, amaliya, vile, tip1971, allamorenaya, rontucker, khval, karnauhova, zhuraavel, newmancord, lesliegolden, landar, fbgf64, patopi, ivan-vladimirov, alionchromich, truki, vladimmirrpe, mokalok, anitchamich, ands, techniquezzz, nunikyan, dimvasilych, beavve, splitolga, borisxchu, poelesnichen, etvolga, victoriaasmut, maretska, telefonist, reclennio, irinaafonina94, fedorpprikl, ianinche, mulifolab, mihailvv, kirjanovian, kuruzova, anopr, anna98854, fominviktorfux, minefix, alexxsei, karatist, poloh, rodovs, dementevada, ar4ikk, qweop, sarmsarma, mirkana, iitv3zvupo, anzelaserbakova, kulakovs, kikree, lipertate, allatsova, gukheva, glorf, podles, dulaeva, kubasas, olichidja, afgany19, zhimo, simona2001, inendrobot, neshchedek, yaro, aa4848, belaevakristina3, wan1985, lavrushka, gubin85, nekrasovaiir, kosamixels, munitus, reseddeo, kessachyselpamm, berezza, braitotto, johnymellon, plexanovay, rosttovatyu, sergeidobrik84, teter, elenaavi, bensert, rublik, alexevairina, qazuse, donnaya, danaya, nyzafa, gawyt, candagar, ohram, khavl, topo, reapere, ggcc65, napska, serzh1991, anandrejs, vyrabalenich, korneevan, shtopel, kiribatty, zukh, romann, volok, laristwoy, kapitoshka, uoohj9ononoh, beczptzpniyu, tiskevichtmara, sharonlocdo, mashkovandrej, pavliutk, vadimshhaba, mamul, barobev, elendundich, semimeev, jaline, chichikov80, lenionvap, alllina, maryiash, wilsman, olgavasina10, sharovromanztbr, nynaci, plesovskih, dillonze, vitall, torsadoduh, minikotik, lechstepik, nikolasss, olntsevch, ewgxwnhf1djf, fbertbe, batsankova, sovas, innamaliov, dexterwaite, polinka, ahtss, imdonsckoy, vloglena, baveva, cherenov, puzhameva, freak, rexave, kapontey, melecskiy, mihalkevsoni, ametova, kigis, mroleg, olovy, altanov, gerelovskaya, irtchernik, alechbosova, glebovene, tatarchuk, pavlikbatashov, ladylogutov, streyloch, thomasdgo7, santrope, donnickov1p, theloresiobhan, wi-fi, elssanochka, vergin, shchabacheva, annaantip, tetsckaya, foxpaul, itw536, maronnat, kiriven, erbuged, maryschev, polistachenko, tonovs, georgijpolutin, vershimari, nidyuv, remilon, izotov, tolkun92off, tsindeli, milovvio, tjkyajarras, sazareev, ilyashesst, prokhis, amirhaeva, igorlik13, demnewa, kizeka, consstalhi9277, avruschin, xsspudi, kyfas, teromova, lbmxlu78uuia, atbeloush, nikoltor, ploki, oktabrinaaleksee, cvetok, bortyaev1b, apudeeva, sartuhanoigor, sjsergey, sofanmed, thorntonrich, tunu4hblu, iragreck, nurigal, kvilch, lyuba.borulina, aktina, ehuu, suzamova, karchenaya, prozxorovigor, balalimo, marsianin, neo2047, reduh086, torzhickov1b, rusmargo, yuliyashe, vadejek, sandoyan, karanf, proglan, heres, yefs53, lobets, andrewfalcon, inaschur, slavgodun, kuet, durik, takta, guuseev, baranovavera, matveevol, lokanov, roxlina.akilina, fyodorovvasiliyt, manobtoc, davionlind, zushchinas, paasuv, stenageza, soups, mayvetlaya, malotina, sweetcat, georgijodiche, abachiev, dinamitos, vermstori, pups, orudhvrwl2lg, mixailzheltyshov, kocherga, serrgehari, mazins, sez, zvedenko, ojioman, raisamorozova, zhuykon, ednaarteaga, sofikachadova, tinaray, ademas, suloev, higginsedwar, iprotsko, revozov, afoninairina893, yankovska, evteev, nezhanayanani, rasko, gbutr, anastasiaaa, debicontreras, meorrfe, stilnas, vulkan, odvakatov, treterie, malyshenko, pashaya, veatys, wauglya, antonnkrra, mashezazh, larabelun, afsaalar, dmotrij, kotletka, curbatyv, nirewwe, aextraov, boulbahoxa, sokoli, fakhogin, mandarinka, ijenirina, yakatsun, zabor, monerve, popot, alenka121992, laurennio, rassel19, barov, vityasavelev, verdyuch, romapuschkare, evdok, sizzuxinivan, milasteblova, bryanmitchel, vkuvychin, bozovas, patriks, barerrasio, littlemiss, resenkov, hrustic, oksanaharitonova, rpenkonin, tsozhev, kolich, vernyaki, garash, olimpiadakotova, agliul, neivnaya, ufkbyf9, zhanpekar, kaimichevs, vtchernof, iqorek, gashen, quentindonohue, milekov, oswenchi, oprashny, khach, leyroft, zhdanovnikolayys, janandreev, spor, polom, levomarym, smalog, spyspooky, janarizhowa, glazok, efimslims, pysin, vischatin, filipbraskovskij, derjavindanila, slanench, krutikova, erohadani, stolpustova, aligo, maxser, tiosiich, ryazanovva, drahma, vteterin, keyakripy, nestrovich, riddles, natmagomed, prettys, isterikais, maksimshha, shognina, rezhiser, sdfyfkziepd5, leonr, ilonova, lidapryazhkin, loveyonalondani, mrborshchev, akhvakh, sofiakarpova, ocharia, oxotnic, lara1990, derevo, vladimirsol, malyshev, raninanina, ckay657, alekseychi, tlondar, luzhski, veskova, krokodil, zyabli, deluxxe, vernoval, frenssio, antuev, kachur, leaayers, supras, marcheleks, vaisyach, mikaello, joshuamatthe, k0chet, asteronf, bella730, tipchatstu71, nastasiagors, vikha, vickigilliland, frajosse, skurkova, olimpiadavladim, belkony, perova, olesyam, eggorich19, zoreje, phani4, celestial, adm, blacklist-a, prowler,