Question

Ayúdenme con estos ejercicios

Answer 1

a) 8 - $\frac{1}{4}$ =$\frac{32-1}{4}$=$\frac{31}{4}$
b) $\frac{21-10}{15}$=$\frac{11}{15}$
c)$\frac{-21-4}{28}$=$-\frac{25}{28}$
d)$2\frac{1}{4}$⇒$-\frac{9}{4}$    
   $1\frac{1}{5}$⇒$\frac{6}{5}$
   $-\frac{9}{4} +\frac{6}{5} = - \frac{21}{20}$
e)$- 3\frac{1}{7}⇒ [tex]- \frac{22}{7}$
   $-2\frac{1}{3} = \frac{7}{3}$
   $-\frac{22}{7} -\frac{7}{3} = -\frac{115}{21}$
f)$1\frac{1}{3} = \frac{4}{3}$$2\frac{3}{7}= \frac{17}{7}$
$\frac{4}{3} + \frac{17}{7}- 1 = \frac{58}{21}$
g)$\frac{3-16-7}{56} = \frac{-20}{ 56}= -\frac{5}{14}$
h)$3- \frac{7}{3} - 1+ \frac{3}{4} = \frac{36-28-12+9}{12} = \frac{5}{12}$

Answer 2

Respuesta:

nolose

Explicación paso a paso: