Question

Efetue as operaçoes conforme o exemplo:
A) 2 quintos + 1 quarto=
B)10 terços + 5 oitavos=
C)5 meios - 2 quitos=
D)15 quartos - 7 décimos=

Answer 1

a)

$\frac{2}{5}+ \frac{1}{4}=\frac{8+5}{20}=\frac{13}{20}$

b)

$\frac{10}{3}+\frac{5}{8}=\frac{80+15}{24}=\frac{95}{24}$

c)

$\frac{5}{2}-\frac{2}{5}=\frac{25-4}{10}=\frac{21}{10}$

d)

$\frac{15}{4}-\frac{7}{10}=\frac{75-14}{20}=\frac{61}{20}$