Question

Resolva a expressão: A) 2/5.3/4+(3/2)2-1/8

Answer 1

2/5 . 3/4 + (3/2)2 - 1/8

6/20 + 6/2 - 1/8

6/20 + 3 - 1/8

6/20 + 60/20 - 1/8

66/20 - 1/8

20-8|2
10-4|2
5-2|2
5-1|5
1-1
m.c.m = 2*2*2*5=>4*2*5=> 8*5=> 40

132/40 - 5/40

127/40