Вычислите ! 1)8/9 +4/15; 2)7/16 - 5/24; 3)9/26 - - вопрос №58021151894152716524392631344582112 от nika716 06.02.2020 08:18

Question

Алгебра: Вычислите ! 1)8/9 +4/15; 2)7/16 - 5/24; 3)9/26 - 3/13; 4)4 5/8 - 2 1/12; 5) 6 6/11 + 3 5/6; 6)5 3/14 - 3 8/21

nika716 · Answer

8/9+4/15=(8*5+4*3)/45=(40+12)/45=52/457/16-5/24=(7*3-5*2)/48=(21-10)/48=11/489/26-3/13=(9-3*2)/26=(9-6)/26=3/264 5/8 - 2 1/12=37/8-25/12=(37*3-25*2)/24=(111-50)/24=61/24=2 13/246 6/11 + 3 5/6=72/11+23/6=(72*6+23*11)/66=(432+253)/66=685/66= 10 25/665 3/14 - 3 8/21=73/14-71/21=(73*3-71*2)/42=(219-142)/42=77/42=1 5/6...