Question

Hello everyone plz give me right answer
for points all are giving wrong
plz give right answer​​

Answer 1

Step-by-step explanation:

(1)

$\frac{2}{5} + \frac{3}{4} + ( - \frac{2}{20} ) + ( - \frac{4}{10} )$

$\frac{2}{5} + \frac{3}{4} - \frac{2}{20} - \frac{4}{10}$

$\frac{2}{5} \times \frac{4}{4} + \frac{3}{4} \times \frac{5}{5} - \frac{2}{20} - \frac{4}{10} \times \frac{2}{2}$

$\frac{8}{20} + \frac{15}{20} - \frac{2}{20} - \frac{8}{20}$

$\frac{15}{20} - \frac{2}{20}$

as 8/20 is cutted

$\frac{13}{20}$

(2)

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

$( \frac{ - 1}{7} ) + \frac{2}{3} - ( \frac{2}{3} \times \frac{3 \times 2}{2 \times 2})$

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

$- \frac{1}{7} + \frac{2}{3} - 1$

$- \frac{1}{7} \times \frac{3}{3} + \frac{2}{3} \times \frac{7}{7} - 1 \times \frac{21}{21}$

$\frac{ - 3}{21} + \frac{14}{21} - \frac{21}{21}$

$\frac{ - 3 + 14 - 21}{21}$

$\frac{ - 10}{21}$

always try to make denominator common

sum will get easy

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