Question

Could someone please help me with this question.. I've tried​

Answer 1

Answer:

(1)

$\frac{ - 1}{2} \times \frac{3}{5} + \frac{3}{2} - \frac{3}{5 } \times \frac{5}{4}$

$= \frac{ - 3}{10} + \frac{3}{2} - \frac{3}{4}$

$= \frac{ - 6 + 30 - 15}{20}$

$= \frac{ - 6 + 15}{20}$

$= \frac{ - 9}{20}$

(2)

$\frac{4}{7} \times \frac{ - 1}{5} + \frac{2}{7} \times \frac{3}{5} - \frac{3}{2} \times \frac{4}{7}$

$= \frac{ - 4}{35} + \frac{6}{35} - \frac{12}{14}$

$= \frac{ - 8 + 12 - 60}{70}$

$= \frac{4 - 60}{70}$

$= \frac{ - 54}{70}$

$= \frac{ - 27}{35}$

(3)

$\frac{1}{5} \times \frac{ - 3}{2} + \frac{4}{5} \times \frac{ - 2}{7} - \frac{1}{6} \times \frac{ - 2}{7}$

$= \frac{ - 3}{10} - \frac{8}{35} + \frac{2}{42}$

$= \frac{ - 63 - 48 + 10}{210}$

$= \frac{ - 63 - 38}{210}$

$= \frac{ - 101}{210}$