Question

12) Efetue as Subtrações: a) (+5/7)-(+2/3) = b)(+2/3) -(+1/2)=​

Answer 1

Resposta:

a) $\frac{5}{7} -\frac{2}{3} =\frac{15}{21} -\frac{14}{21} =\frac{1}{21}$

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