Question

resolva a seguinte operacão com fração
4/5+1/2-5/8=​

Answer 1

Resposta:

4/5+1/2-5/8

32+20-25/40

52-25/40

27/40

5,2,8 | 2

5, 1, 4 | 2

5,1, 2 | 2

5, 1, 1 | 5

1, 1, 1

MMC(2,5,8)= 40

Answer 2

Resposta:

$\frac{27}{40}$

Explicação passo-a-passo:

$\frac{4}{5} + \frac{1}{2} - \frac{5}{8}$

mmc (5,2,8)

2, 5, 8     : 2

1, 5, 4     : 2

1, 5, 2     : 2

1, 5, 1     : 5

1, 1, 1

$mmc_{(2,5,8)} = 2 . 2 . 2 . 5$

$mmc_{(2,5,8)} = 40$

$\frac{(8 . 4) + (20 . 1) - (5 . 5)}{40}$

$\frac{32 + 20 - 25}{40}$

$\frac{52 - 25}{40}$

$\frac{27}{40}$