Question

alguien que me ayude con esto paso a paso?​

Answer 1

La respuesta de la C es 28/15

Answer 2

Respuesta:

a. $\frac{35}{36}$

b. $\frac{10}{21}$

c. $\frac{28}{15}$

Explicación paso a paso:

a. $\frac{3}{4} + \frac{8}{9}:2 \longrightarrow \frac{3}{4} + \frac{8}{9}:\frac{2}{1} = \frac{3}{4} + \frac{4}{9} =\frac{27}{36} + \frac{16}{36} = \frac{35}{36}$

b. $\frac{4}{60} \cdot \frac{15}{2} \cdot \frac{5}{21} \longrightarrow \frac{1}{15} \cdot \frac{15}{2} \cdot \frac{5}{21} = \frac{4 \cdot 15 \cdot5}{15 \cdot 2 \cdot 21} = \frac{4 \cdot5}{ 2 \cdot 21} = \frac{20}{42} = \frac{10}{21}$

c. $\sqrt{\frac{25}{4}} \cdot \frac{2}{3} + (\frac{1}{5})^2 : \frac{1}{5} \longrightarrow \frac{\sqrt{25}}{\sqrt{4}}} \cdot \frac{2}{3} + \frac{1}{5} \cdot \frac{1}{5} : \frac{1}{5} = \frac{5}{2} \cdot \frac{2}{3} + \frac{1}{5} = \frac{5}{3} + \frac{1}{5} = \frac{25}{15} + \frac{3}{15} = \frac{28}{15}$