1) 1 7/12/(3/8+5/12) = 19/12: (18/48+20/48) = 19/12: 38/48 = 19/12*48/38 =2
2) (3/14+5/7)/3 5/7 = (3/14+10/14): 26/7 =13/14: 26/7 = 13/14*7/26 = 1/4 = 0,25
ответ:2, 1/4
Пошаговое объяснение:
1)3/8+5/12=19/24
2)1 7/12÷19/24=2
1)3/14+5/7=13/14
2)13/14÷3 5/7=1/4
