Question

1/2+7/5-3/10=







1/2+3/4+5/3=








2/4+6/3+3/5=





x fa es para hoy doy coronita ​

Answer 1

RESOLVER:

a) $\frac{1}{2}+\frac{7}{5}-\frac{3}{10}$

MCM de 2, 5 y 10 es 10

Entonces:

$=\frac{5}{10}+\frac{14}{10}-\frac{3}{10}\\\\=\frac{5+14-3}{10}\\\\=\frac{16}{10}\\\\\boxed{=\frac{8}{5}}$

b) $\frac{1}{2}+\frac{3}{4}+\frac{5}{3}$

MCM de 2, 4 y 3 es 12

Entonces:

$=\frac{6}{12}+\frac{9}{12}+\frac{20}{12}\\\\=\frac{6+9+20}{12}\\\\\boxed{=\frac{35}{12}}$

c) $\frac{2}{4}+\frac{6}{3}+\frac{3}{5}$

Cancelamos $\frac{2}{4}:\frac{1}{2}$

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

MCM de 2, 3 y 5 es 30

Entonces:

$=\frac{15}{30}+\frac{60}{30}+\frac{18}{30}\\\\=\frac{15+60+18}{30}\\\\=\frac{93}{30}\\\\\frac{93}{30}:\frac{31}{10}\\\\\boxed{=\frac{31}{10}}$

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