Question

Resolva as adições e subtraçoes,utilizamdo o metodo de MMC

A)2/3 + 7/4

B)7/5 + 3/20

C)9/4 + 3/5

D)9/4 - 3/7

E)5/2 - 1/4

F)11/6 - 3/5

Answer 1

a) 9/12
b)10/20
c)12/20
d)6/28
e)4/4
f)8/30