Question

QUESTÃO 4 – Calcule:
a)
1
5
+
2
5
-
3
4

b)
2
3
+
1
2
+ 3

Answer 1

Vamos là.

a)

15 + 25 - 34 = 6

b)

23 + 12 + 3 = 38

Answer 2

$\large\boxed{\begin{array}{lr}a) \: 15 + 25 - 34 = \boxed{6} \\ b) \: 23 + 12 + 3 = \boxed{38}\end{array}}$