Question

Выполните вычитание дробей:а)3 1/2 -5/9; б)1 1/4 -1/3;  в)1 13/15 - 2/5; г)1 1/3-5/6 ;д) 2 3/10-4/15 ; е)3 1/8 -1/6 СРОООЧНО НАДООО ПЖЛ.

Answer 1

так, там 3 целых и дробь идет? 

Answer 2

в) 28/15 - 2/5 = (140 - 30)/75 = 110/75 = 22/15

Answer 3

в) 22/15 = 1 7/15

Answer 4

г) 4/3 - 5/6 = (24 - 15)/18 = 9/18 = 2

Answer 5

д)13/10 - 4/15 = (195 - 40) /150 = 155/150 = 31/30 = 1 1/30

Answer 6

е) 25/8 - 1/6 = (150 - 8)/48 = 142/48 = 71/24=2 23/24