Question

3. Resolva as multiplicações de números mistos.
a) 2 1/4×31/3
b)31/7×14/3
c)41/4×2/3
d)38/8×52/5​

Answer 1

Resposta:

a) 2 1/4×31/3  = (4.2 + 1)x31/3 = (8 + 1)/4x31/3 =9/4x31/3 = 279/9 = 31

b)31/7×14/3  = 434/21

c)41/4×2/3  = 82/12 = 41/6

d)38/8×52/5​ = 1976/40 = 247/5

Explicação passo-a-passo:

Answer 2

Oi....

Resolução:

a)

2 1/4 × 3 1/3

9/4 × 10/3

3/2 × 5

15/2

b)

3 1/7 × 1 4/3

22/7 × 7/3

22 × 1/3

22/3

c)

4 1/4 × 2/3

17/4 × 2/3

17/2 × 1/3

17/6

d)

3 8/8 × 5 2/5

32/8 × 27/5

4 × 27/5

108/5

Bons estudos.​