Question

Vă rog b)!!Urgent!!!

Answer 1

Răspuns:

Explicație pas cu pas:

7/15 + 1/3 - 1/5 = 7/15 + 5/15 - 3/15 = 9/15 = 3/5

3/5*5/4 = 3/4

1/2 - 1/4 = 2/4 - 1/4 = 1/4

1/4 : 5/12 = 1/4*12/5 = 3/5

3/4 + 3/5 = 15/20 + 12/20 = 27/20

27/20*2/7 = 27/70