Question

ayúdenme en esto gracias ​

Answer 1

Respuesta:
1.-

$15\frac{1}{2}-4\frac{3}{5}$ = $\frac{31}{2}-\frac{23}{5}$

$\frac{31}{2}-\frac{23}{5}$ = $\frac{109}{10}$

$\frac{109}{10}$ = $10\frac{9}{10}$

2.-
$10\frac{1}{4}-3\frac{1}{2}$ = $\frac{41}{4}-\frac{7}{2}$

$\frac{41}{4}-\frac{7}{2}$ = $\frac{41}{4}-\frac{14}{4}$

$\frac{41}{4}-\frac{14}{4}$ = $\frac{41-14}{4}$

$\frac{41-14}{4}$ = $\frac{27}{4}$ = $6\frac{3}{4}$

3.-
$9\frac{2}{4}-5$ = $\frac{38}{4}-\frac{5}{1}$

$\frac{38}{4}-\frac{5}{1}$ = $\frac{38}{4}-\frac{20}{4}$

$\frac{38}{4}-\frac{20}{4}$ = $\frac{38 - 20}{4}$

$\frac{38 - 20}{4}$ = $\frac{18}{4}$ = $4\frac{1}{2}$

4.-
$16\frac{5}{8}-5\frac{1}{4}$ = $\frac{133}{8}-\frac{21}{4}$

$\frac{133}{8}-\frac{21}{4}$ = $\frac{133}{8}-\frac{42}{8}$

$\frac{133}{8}-\frac{42}{8}$ = $\frac{133 - 42}{8}$

$\frac{133 - 42}{8}$ = $\frac{91}{8}$ = $11\frac{3}{8}$