Question

(-7) /5 × 3/8 + 5/2 - 3/8 × 5/11​

Answer 1

Answer:

1.804

-21/40 + 5/2- 15/88

158/80 - 15/88

12704/7040

= 1.804

Answer 2

$\: \: ( \frac{ - 7}{5} \times \frac{3}{8} + \frac{5}{2} - \frac{3}{8} \times \frac{5}{11} ) \: = {?}$

$= \frac{ - 21}{40} + \frac{5}{2} - \frac{15}{88}$

LCM of 40, 2, and 88 = 440

$= \frac{( - 21 \times 11) + (5 \times 220) - (15 \times 5)}{440}$

$= \frac{( - 131) + 1100 - 75}{440}$

$= \frac{1100 - 75 - 131}{440}$

$= \frac{1100 - 206}{440}$

$= \frac{894}{440}$

$= 2 \frac{14}{440}$