Question

efetue as subtracao
6/4 -2/3
5/8-1/2
1/2-1/3
5/6-1/3
4/5-2/7

Answer 1

Explicação passo-a-passo:

6/4 -2/3=3.6-2.4/4.3=18-8/12=10/12

6/4-2/3=10÷2/12÷2=5/6

5/8-1/2=2.5-8.1/2.8=10-8/16=2/16

5/8-1/2=2÷2/16÷2=1/8

1/2-1/3=3.1-2.1/2.3=3-2/6=1/6

5/6-1/3=3.5-1.6/3.6=15-6/18=9/18

5/6-1/3=9÷9/18÷9=1/2

4/5-2/7=4.7-2.5/5.7=28-10/35=18/35

Espero ter ajudado!

Answer 2

Explicação passo-a-passo:

$\frac{6}{4} - \frac{2}{3}$

MMC(3,4)=12

$\frac{18 - 8}{12} = \frac{10}{12} = \frac{5}{6}$

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

MMC(2,8)=8

$\frac{5 - 4}{8} = \frac{1}{8}$

$\frac{5}{6} - \frac{1}{3}$

MMC(3,6)=6

$\frac{5 - 2}{6} = \frac{3}{6} = \frac{1}{2}$

$\frac{4}{5} - \frac{2}{7}$

MMC(5,7)=35

$\frac{28 - 10}{35} = \frac{18}{35}$

Bons Estudos!!