Question

auidaaaaa doy coronita​

Answer 1

Explicación paso a paso:

a.

$3 \div \frac{5}{4} = \frac{3}{1} \div \frac{5}{4} = \frac{15}{4}$

b.

$\frac{1}{2} + \frac{1}{5} = \frac{5}{2}$

c.

$4 - ( - 9) = 4 + 9 = 13$