Question

A)1/2 + 1/3=
B)2/5 + 3/5=
C)6/7 - 3/4=
D)1/4 - 1/5 =
E)3/10. 1/7=
F)2/5 . 3/7=
G)2/3 : 1/7=
H)1/2 : 2/9=

Answer 1

Resposta:

Olá!

Explicação passo-a-passo:

a. $\frac{1}{2}+\frac{1}{3}=\frac{3+2}{6}=\frac{5}6}$

b. $\frac{2}{5}+\frac{3}{5}=\frac{2+3}{5}=\frac{5}5}=1$

c. $\frac{6}{7}-\frac{3}{4}=\frac{24-21}{28}=\frac{3}{28}$

d. $\frac{1}{4}-\frac{1}{5}=\frac{5-4}{20}=\frac{1}{20}$

e. $\frac{3}{10}.\frac{1}{7}=\frac{3.1}{10.7}=\frac{3}{70}$

f. $\frac{2}{5}.\frac{3}{7}=\frac{2.3}{5.7}=\frac{6}{35}$

g. $\frac{\frac{2}{3} }{\frac{1}{7} } =\frac{2}{3}.\frac{7}{1}=\frac{2.7}{3.1}=\frac{14}{3}$

h. $\frac{\frac{1}{2} }{\frac{2}{9} } =\frac{1}{2}.\frac{9}{2}=\frac{1.9}{2.2}=\frac{9}{4}$

Bons Estudos!