Question

1)efetue :
7/12-3/16

Answer 1

$\frac{7}{12} - \frac{3}{16}$

12,16|2
 6,  8 |2
 3,  4 |2
 3,  2 |2
 3,  1 |3
 1,   1

2 x 2 x 2 x 2 x 3 = 48

$\frac{28 - 9}{48}$

$\frac{19}{48}$

Bons estudos!

Answer 2

7/12-3/16
tire o mmc de 12 e 16
12,16|2
6,8|2
3,4|2
3,2|2
3,1|3
1,1       2^4.3=48

$\frac{28-9}{48} =$ $\frac{19}{48}$