Question

realize as operações abaixo

a)5/8+3/8-1/8=

b)13/6+3/9+5/14=

c)3/6+3/9-3/4=

d)2/12-1/18+5/16=​

Answer 1

Explicação passo-a-passo:

.

Bom dia,

$a) \dfrac{5}{8} + \dfrac{3}{8} - \dfrac{1}{8}$

$\dfrac{8}{8} - \dfrac{1}{8}$

$\dfrac{7}{8}$

.

$b) \dfrac{13}{6} + \dfrac{3}{9} + \dfrac{5}{14}$

mmc 42

$\dfrac{91 + 14 + 14}{42}$

$\dfrac{120}{42}$

$\dfrac{120 {}^{ \div 6} }{42 {}^{ \div 6} }$

$\dfrac{20}{7}$

.

$c) \dfrac{3}{6} + \dfrac{3}{9} - \dfrac{3}{4}$

mmc 12

$\dfrac{6 + 4 - 9}{12}$

$\dfrac{1}{12}$

.

$d) \dfrac{2}{12} - \dfrac{1}{18} + \dfrac{5}{16}$

mmc 144

$\dfrac{24 - 8 + 45}{144}$

$\dfrac{61}{144}$