Question

4/7 + 3/4 - 5/14

3(1/5 + 2/3 ) -2 (1 /2 - 2/5)

15/27 . 9/5 + 16/28 . 7/4

Answer 1

$\frac{4}{7} + \frac{3}{4} - \frac{5}{14} \\ \frac{16 + 21 - 10}{28} = \frac{27}{28}$

$3( \frac{1}{5} + \frac{2}{3}) - 2( \frac{1}{2} - \frac{2}{5}) \\ 3( \frac{3 + 10}{15}) - 2( \frac{5 - 4}{10}) \\ 3( \frac{13}{15}) - 2( \frac{1}{10}) \\ \frac{13}{5} - \frac{1}{5} \: \: \: \: \: \: \: \: = \: \: \: \: \: \: \frac{12}{5}$

$\frac{15}{27} . \frac{9}{5} + \frac{16}{28} . \frac{7}{4} \\ \: \: \: \: \: \: \: 1 + 1 \\ = \: \: \: 2$