Question

52/65-20/25=...
2/5+21/9=
12/7*3/15=
14/9 / 10/33=

Answer 1

Respuesta:

$\frac{52}{65} - \frac{20}{25} = \frac{1300 - 1300}{1625} = 0 \div 1625 = 0$

$\frac{2}{5} + \frac{21}{9} = \frac{18 + 105}{45} = \frac{123}{45} \\ simplificamos \: y \: nos \: queda \: \frac{41}{15}$

$\frac{12}{7} \times \frac{3}{5} = \frac{36}{85}$

$\frac{14}{9} \div \frac{10}{33} = \frac{462}{90} = \: simplificas \: y \: \\ nos \: queda \frac{77}{15}$