Question

Calcule e simplifique quando necessario

Answer 1

1)
$\frac{2}{12} = \div 2 \frac{1}{6}$
2)
$\frac{6}{42} = \div 2 \frac{3}{21} \div 3 \frac{1}{7}$
3)
$\frac{3}{15} = \div 3 \frac{1}{5}$
4)
$\frac{8}{14} = \div 2 \frac{4}{7}$
5)
$\frac{10}{13}$

Answer 2

Oi

1/8 = 1/4 = o mmc de 8,4 = 8

1/8 + 2/8 =

3/8

2/7 +1/14 + 3/21=o mmc de 7,14,21=42

12/42 + 3/42 + 6/42 =

21/42 ÷ 21 =

1/2

1/5 + 1/8 + 1/2=o mmc de 5,8,2=40

8/40 + 5/40 + 20/40 =

33/40

5/6 + 3/8 =0 mmc de 6,8=24

20/24 + 9/24 =

29/24

4/5 + 1/2 + 5/6 =o mmc de 5,2,6 = 30

24/30 + 15/30 + 25/30 =

64/30 ÷ 2

32/15

Espero ter ajudado.