Question

2/5+1/3=
5/2+2/7=
3/10+1/5=
1/6+7/10=

Answer 1

Resposta:

Explicação passo-a-passo:

a) 2/5 + 1/3

= 6/15 + 5/15

= 11/15

b) 5/2 + 2/7

= 35/14 + 4/14

= 39/14

= 2 1/14

c) 3/10 + 1/5

= 3/10 + 2/10

= 5/10

= 1/2

d) 1/6 + 7/10

= 10/60 + 42/60

= 52/60

= (52 ÷ 4)/(60 ÷ 4)

= 13/15