Question

Calcule, simplificando o resultado

Answer 1

Resposta:

A)

$\frac{10}{4} \ + \frac{12}{5} = \\ \\ \frac{10}{4} = 2 \frac{2}{4} = 2\frac{2}{2.2} = 2 \frac{1}{2} \\ \\ \frac{12}{5} = 2 \frac{2}{5} \\ \\ 2 \frac{1}{2} + 2\frac{2}{5} = 2\frac{1.5}{10} + 2 \frac{2.2}{10} = 2 + 2 \frac{5 + 4}{10} = 4 \frac{9}{10}$

B)

$\frac{1}{2} + \frac{1}{3} \\ \\ \frac{1.3}{6} + \frac{1.2}{6} = \frac{3 + 2}{6} = \frac{5}{6}$

C)

$\frac{5}{4} - \frac{4}{5} \\ \\ \frac{5}{4} = 1 \frac{1}{4} \\ \\ 1 \frac{1}{4} - \frac{4}{5} = 1 \frac{1.5}{20} - \frac{4.4}{20} = \frac{25 - 16}{20} = \frac{9}{20}$

D)

$\frac{1}{3} - \frac{1}{5} \\ \\ \frac{1.5}{15} - \frac{1.3}{15} = \frac{5 - 3}{15} = \frac{2}{15}$

Explicação passo-a-passo:

ESPERO TER AJUDADO!