Question

Efetue as expressoes ,simplificando o resultado quando possivel :
( a ) 7+1=
2 2

( b) 5 - 3=
3 3

(c) 2- 1 =
5 7

(d) 2 : 3
9 4

(e) 9x5=
20 6

me ajudem pfv

Answer 1

a)7+1=8 :4=2 :2=1

b)5-3=2 : 2=1

c)2- 1 = 1

d) 9 x 5 =45 :5 = 9 : 3 = 3 : 3 = 1