Question

calcule a expressão (5/4-1/2):(1/3+2/5)

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Answer 1

Explicação passo-a-passo:

$\frac{5}{4} -\frac{1}{2}:$ Igualar os denominadores($\frac{1}{2} =\frac{2}{4}$)

$\frac{5}{4} -\frac{2}{4} =\frac{5-2}{4}=\frac{3}{4}\\\\\frac{1}{3} +\frac{2}{5}=(mmc) \frac{5+6}{15}=\frac{11}{15}\\\\\frac{\frac{3}{4} }{\frac{11}{15} }= \frac{3}{4}.\frac{15}{11}= \frac{45}{44}$