Question

plz send me the ans fast​

Answer 1

Step-by-step explanation:

$1.) \: \frac{9}{20} + \frac{21}{10}$

lcm = 20

$\frac{9 + 42}{20} = \frac{51}{20}$

$2.) \: in \: this \: question \: \frac{ - 5}{3} \times \frac{6}{10} will \: be \: change \: into \: \\ \frac{ - 5}{3} \times \frac{6}{10}$

$\frac{ - 5}{3} \times \frac{6}{10 } = \frac{ - 1}{1} = \frac{2}{2} = 1$

hope it will help you

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