Question

calcule:
a) 2/3 - 7/3=
b) 1/3 + 1/2=
c) 4/5 . 3/2=
d) 2/3 : 2/6=​

Answer 1

Explicação passo-a-passo:

a) -5/3

b) 2/6 + 3/6 = 5/6

c) 12/10 simplificando 3/5

d) 2/3 ÷ 2/6 = 2

Answer 2

$a)\ \frac{2}{3} -\frac{7}{3} =\frac{2-7}{3}=\frac{-5}{3} =-\frac{5}{3}\\\\b)\ \frac{1}{3} +\frac{1}{2} =\frac{2}{6}+\frac{3}{6}=\frac{2+3}{6} =\frac{5}{6} \\\\c)\ \frac{4}{5} \cdot\frac{3}{2} =\frac{4\cdot3}{5\cdot2}=\frac{12^{:2}}{10_{:2}}=\frac{6}{5} \\\\d)\ \frac{2}{3} :\frac{2}{6} =\frac{2}{3}\cdot\frac{6}{2}=\frac{2\cdot6}{3\cdot2}=\frac{12}{6}=2$