Question

найдите знач выр-я 7/20 : 0,7- 4/5

Answer 1

7/20 : 7/10 - 4/5 = 7/20 * 10/7 - 4/5 = 1/2 - 4/5 = -3/10

Answer 2

0.7-4/5=-1/10
7/20:(-1/10)=7/20*(-1/10)=7