Question

please explain..8th grade maths

Answer 1

$a. \: \frac{21}{5} \times \frac{25}{7}$

$\: \: \: \: \frac{3}{1} \times \frac{5}{1}$

$\: \: \: \: 15$

$b. \: (\frac{ -2}{3} ) - ( \frac{ - 5}{6} )$

$\: \: \: \: \frac{ - 3}{2} + \frac{5}{6}$

$\: \: \: \: \frac{ - 3}{2} \times \frac{3}{3} + \frac{5}{6}$

$\: \: \: \: \frac{ - 9 + 5}{6}$

$\: \: \: \: \frac{ - 4}{6}$

$\: \: \: \: \frac{ - 2}{3}$

$Start \: following \: me. \: If \: this \: answer \: is \\ \: helpful \: so \: mark \: my \: answer \: as \\ \: brainliest \: answer.$