Question

12/8-2/7+11/9= 9/8×1/3+8/6-1/5 = 9/4+12/5+3/2= es urgente es para hoy con explicación plis​

Answer 1

Explicación paso a paso:

1)

$\frac{12}{8}-\frac{2}{7}+\frac{11}{9} =$

primero hago la resta y simplifico 12/8 a 3/2 y ahora:

$\frac{3}{2}-\frac{2}{7}+\frac{11}{9} =$

$\frac{21}{14}-\frac{4}{14}+\frac{11}{9} =$

$\frac{17}{14}+\frac{11}{9} =$

$\frac{153}{126}+\frac{154}{126} =$

$\frac{307}{126}$ = $2\frac{55}{126}$

2)

$\frac{3}{8}+\frac{8}{6}-\frac{1}{5}$ =

$\frac{3}{8}+\frac{4}{3}-\frac{1}{5}$ =

$\frac{9}{24}+\frac{32}{24}$  =

$\frac{41}{24}$ $-\frac{1}{5}$ =

$\frac{205}{120}-\frac{24}{120}$ =

$\frac{181}{120}$ = $1\frac{61}{120}$

3)

$\frac{9}{4}+\frac{12}{5}+\frac{3}{2}$ =

$\frac{45}{20}+\frac{48}{20}+\frac{3}{2}$ =

$\frac{93}{20}+\frac{3}{2}$ =

$\frac{93}{20}+\frac{30}{20}$ =

$\frac{123}{20}$ = $6\frac{3}{20}$