Question

3/5 -1/4+3/8 qual a reposta

Answer 1

$\LARGE\tt{} \dfrac{3}{5} - \dfrac{1}{4} + \dfrac{3}{8} \\ \\ \LARGE\tt{} \dfrac{3 \times 8}{5 \times 8} - \dfrac{1 \times 10}{4 \times 10} + \dfrac{3 \times 5}{8 \times 5} \\ \\ \LARGE\tt{} \dfrac{24}{40} - \dfrac{10}{40} + \dfrac{15}{40} \\ \\ \LARGE\tt{} \dfrac{24 - 10 + 15}{40} \\ \\ \LARGE\tt{}(24 - 10 + 15) \\ \LARGE\tt{}39 - 10 \\ \LARGE\tt{}29 \\ \\ \LARGE\tt{}{\large\boxed{\boxed{  { \LARGE \tt \dfrac{29}{40} }}}}$

Bons estudos!