Question

EFETUE AS OPERAÇÕES;​

Answer 1

Explicação passo-a-passo:

a)

$\frac{3}{5} + \frac{3}{5} \\ tire \: mmc \: de \: 5 \\ \frac{3 + 3}{5} \\ \frac{6}{5}$

b)

$\frac{12}{3} + \frac{11}{2} + \frac{5}{7} \: reduza \: 12 \: por \: 3 \\ 4 + \frac{11}{2} + \frac{5}{7} \: mmc \: de \: 2 \: e \: 7 \\ \frac{56 + 77 + 10}{14} \\ \frac{143}{14}$

c)

$\frac{24}{7} - \frac{1}{7} mmc \: de \: 7 \\ \frac{24 - 1}{7} \\ \frac{23}{7}$

d)

$\frac{23}{4} - \frac{5}{9} mmc \: de \: 4 \: e \: 9 \\ \frac{207 - 20}{36} \\ \frac{187}{36}$

e)

$\frac{4}{9} + \frac{1}{9} - \frac{5}{8} \\ \frac{4 + 1}{9} - \frac{5}{8} \\ \frac{5}{9} - \frac{5}{8} \: mmc \: de \: 8 \: e \: 9 \\ \frac{40 - 45}{72} \\ - \frac{5}{72}$

f)

$\frac{4}{5} \times \frac{11}{2} \times \frac{5}{7} \: reduza \: 4 \: por \: 2 \: e \: 5 \: por \: 5 \\ 2 \times 11 \times \frac{1}{7} \\ \frac{22}{7}$

g)

$\frac{3}{4} \times \frac{5}{4} \times \frac{7}{4} \\ \frac{105}{64}$

h)

$\frac{6}{5} \div \frac{3}{5} \\ \frac{6}{5} \times \frac{5}{3} \\ 6 \times \frac{1}{3} \\ 2$

i)

$\frac{4}{7} \div \frac{11}{5} \\ \frac{4}{7} \times \frac{5}{11} \\ \frac{20}{77}$