Question

Sabe-se que a=3/8 × 4/3 e b=7/10 ÷ 3/5.Qual e o valo de a+b ?​

Answer 1

Resposta:

5/3

Explicação passo-a-passo:

Answer 2

$\mathsf{a=\dfrac{3}{8}\times\dfrac{4}{3}=\dfrac{12\div12}{24\div12}=\dfrac{1}{2}}$

$\mathsf{b=\dfrac{7}{10}\div\dfrac{3}{5}}\\\mathsf{b=\dfrac{7}{10}\times\dfrac{5}{3}=\dfrac{35\div5}{30\div5}=\dfrac{7}{6}}$

$\mathsf{a+b=\dfrac{1}{2}+\dfrac{7}{6}=\dfrac{3+7}{6}}$

$\boxed{\boxed{\mathsf{a+b=\dfrac{10\div2}{6\div2}=\dfrac{5}{3}}}}$