Question

Resolva as frações e quando possível simplifique

a) 4/7 + 2 + 1/7
b) 1/2 - 1/4 - 1/8
c) 3 + 2/5
d) 1/2 + 1/5 + 3

Answer 1

a) MMC = 7
4/7 + 14/7 + 1/7 = 19/7

b) MMC = 8
4/8 - 2/8 - 1/8 = 1/8

c) MMC = 5
15/5 + 2/5 = 17/5

d) MMC = 10
5/10 + 2/10 + 30/10 = 37/10

Answer 2

a) 4/7+2/1+1/7= 4/7+14/7+1/7=19/7

b)1/2-1/4-1/8=
4/8-2/8-1/8=1/8

c)3/1+2/5= 15/5+2/5=17/5

d)1/2+1/5+3/1=
5/10+2/10+30/10=37/10

espero ter ajudado.