Question

14. Calcule as expressões abaixo e simplifique
simplifique o resultado quando possível.
a) 1/2 + 3/2.
b) 4/6 - 1/6.
c) 3/4 + 1.​

Answer 1

Resposta:

a)$\frac{1}{2}+\frac{3}{2}=2$

b) $\frac{4}{6} - \frac{1}{6} = \frac{1}{2}\quad \left(\mathrm{Decimal:\quad }\:0.5\right)$

c)$\frac{3}{4}+1=\frac{7}{4}\quad\left(\mathrm{Decimal:\quad}\:1.75\right)$

Explicação passo-a-passo:

a)$\frac{1}{2}+\frac{3}{2}= \frac{1+3}{2}= \frac{4}{2}= 2$

b) $\frac{4}{6} -\frac{1}{6} = \frac{4-1}{6}= \frac{3}{6}= \frac{1}{2}$

c)$\frac{3}{4}+1= \frac{1\cdot \:4}{4}+\frac{3}{4}= \frac{1\cdot \:4+3}{4}= \frac{7}{4}$