Question

Resolva as expressões a seguir:

a) (2/5+7/3-1/4).1/5=
b) (2/7+5/7) : 7/5=
c) (1,45-0,85) : 1/3=

Answer 1

Resposta:

mmc de 5,3,4 ----2

5,3,2-----2

5,3,1------3

5,1,1-------5

1,1,1--

mmc = 60

a) (24/60+140/60+15/60).1/5

174/60.1/5=174/300

b) 7/7:7/5=7/7.5/7=35/49=5/7

c) 0,6:1/3=0,6.3/1=1,8

Espero ter ajudado.