Question

ayuda por favor gente ​

Answer 1

Explicación paso a paso:

Answer 2

Explicación paso a paso:

a)

$\sqrt{ \frac{1}{25} + \frac{9}{20} } + \frac{2}{5} \\ \sqrt{ \frac{49}{100} } + \frac{2}{5} = \frac{7}{10} + \frac{2}{5} = \frac{11}{10}$

b)

$\frac{16}{15} \div ( - \frac{8}{3} ) + ( - \frac{1}{2} ) - \frac{3}{5} \\ \frac{2}{5} \div - 1 - 1 - \frac{3}{5} \\ - \frac{2}{5} - \frac{8}{5} = - \frac{10}{5} = - 2$

c)

$- \frac{3}{4} \div ( - \frac{21}{8} ) - \frac{1}{7} - 1 \\ \frac{2}{7} - \frac{1}{7} - 1 = \frac{ - 6}{7}$

d)

$( 1 + \frac{1}{2}) + 2 - \frac{5}{4} \\ \frac{3}{2} + 2 - \frac{5}{4} \\ \frac{6 + 8 - 5}{4} = \frac{9}{4}$