Question

Find a) (5/63)-(-5/21)
b). (-4) + (-2/3)​

Answer 1

$\huge ( \frac{5}{63} ) - ( \frac{ - 5}{21} )$

$\huge \implies \frac{5}{63} - ( \frac{ - 5}{21} )$

$\huge \implies \frac{5}{63} - \frac{ - 5}{21}$

$\huge \implies \frac{5}{63} + \frac{ 5}{21}$

LCM=63

$\huge \implies \frac{5}{63} + \frac{15}{63}$

$\huge \implies \frac{20}{63}$