Question

Por favor me ajudem !!!!!
A) 3/5+2/3×1/2

b) (2/5)elevado a 2 + a raiz quadrada de 36/25 × 1/5

C) (1/3 × 9/2) + (3/7 ÷ 1/14)

Answer 1

A)
$\frac{3}{5} + \frac{2}{3} \times \frac{1}{2} = \\ \\ \frac{3}{5} + \frac{\not2}{3} \times \frac{1}{\not2} = \\ \\ \frac{3}{5} + \frac{1}{3} = \\ \\ mmc(3,5)=15 \\ \\ \frac{9+5}{15} =\fbox{ \frac{14}{15} }$ 

B)
$( \frac{2}{5} )^2+ \sqrt{ \frac{36}{25} } \times \frac{1}{5} = \\ \\ \frac{4}{25} + \frac{6}{5} \times \frac{1}{5} = \\ \\ \frac{4}{25} + \frac{6}{25} = \frac{10:5}{25:5} = \fbox{ \frac{2}{5} }$ 

C)
$( \frac{1}{3} \times \frac{9}{2} )+( \frac{3}{7} \div \frac{1}{14} )= \\ \\ ( \frac{1}{\not3} \times \frac{\not9^3}{2} )+( \frac{3}{\not7} \times \frac{\not14^2}{1} )= \\ \\ \frac{3}{2} + \frac{6}{1} = \frac{3+12}{2} =\fbox{ \frac{15}{2} }$