Question

9. Qual é o resultado da operação 2/3 + 3/5 -7/2? ​

Answer 1

Resposta:

2/3 + 3/5 -7/2

=19/15−7/2

=−67/30 (Decimal: -2.233333)

Explicação passo a passo:

Answer 2

$\mathsf{\dfrac23+\dfrac35-\dfrac72}\\\\\mathsf{mmc(3, 5, 2)=30}\\\\\mathsf{\dfrac{20}{30}+\dfrac{18}{30}-\dfrac{105}{30}}\\\\\mathsf{\dfrac{20+18-105}{30}}\\\\\mathsf{\dfrac{38-105}{30}}\\\\\mathsf{\dfrac{-67}{30}}\\\\\boxed{\boxed{\mathsf{-\dfrac{67}{30}}}}$