Question

Opere as frações:
a) −2/4 + 3/4
b) 4/12 + 3/4
c) −21/2 − 30/4

Answer 1

Resposta:

Explicação passo-a-passo:

a.

-2/4+3/4=

+1/4

b.

4/12+3/4=

4/12+9/12=

13/12

c.

-21/2-30/4=

-42/4-30/4=

-72/4=

-18