Question

2 - Resolvam as frações abaixo:

a) 2/4 . 3/5
b) 5/9 . 3/8
c) 2/8 / 3/4
d) 1/5 / 2/8 / 3/7 *

Answer 1

Resposta:

a)2/4 × 3/5=

reduza a fração 2/4= 1/2

1/2×3/5=3/10

b)5/9×3/8=

5/3×1/8=

5/24

c)2/8 ÷ 3/4 =

2/8 × 4/3 =

1/4 × 4/3 =

*cancela os denominadores*

1/3

d)1/5÷2/8÷3²/7 =

1/5×8/2×7/3²=

1/5×4×7/3²=

1/5×4×7/9=

28/45