Question

resolver los siguientes divisiones transformando previamente en multiplicaciones
A- 15/16 : 25/8 =
B- 20/21 : 24/35 =
C- 8/3 : 4

3- Resolver los siguientes cálculos combinados.

A- ( 1/2 + 1/3) . 18/25 =
B- (2-7/4) . 8/5 - 3/10 =
C- 6/5 . 2/3 + 3/10 =



ES URGENTE PLIS!! ​

Answer 1

Respuesta:

$2$

$A) \frac{15}{16} \div \frac{25}{8} = \frac{15}{16} \times \frac{8}{25} = \frac{3}{10}$

$B ) \frac{20}{21} \div \frac{24}{35} = \frac{20}{21} \times \frac{35}{24} = \frac{25}{42}$

$C ) \frac{8}{3} \div 4 = \frac{8}{3} \times \frac{1}{4} = \frac{2}{3}$

$3$

$A)( \frac{1}{2} + \frac{1}{3} ) \times \frac{18}{25} = ( \frac{3}{6} + \frac{2}{6} ) \times \frac{18}{25} = \frac{5}{6} \times \frac{18}{25} = \frac{3}{5}$

$B )(2 - \frac{7}{4} ) \times \frac{8}{5} - \frac{3}{10} = ( \frac{8}{4} - \frac{7}{4} ) \times \frac{8}{5} - \frac{3}{10} = \frac{1}{4} \times \frac{8}{5} - \frac{3}{10} = \frac{2}{5} - \frac{3}{10} = \frac{4}{10} - \frac{3}{10} = \frac{1}{10}$

$C ) \frac{6}{5} \times \frac{2}{3} + + \frac{3}{10} = \frac{4}{5} + \frac{3}{10} = \frac{8}{10} + \frac{3}{10} = \frac{11}{10}$