Question

1. Using appropriate properties find :
(i) 4/7 × (-1/5) + 2/7× 3/5 - 3/2×4/7
(ii) 1/5× (-3/2)+4/5×(-2/7)-1/6×(-2/7)​

Answer 1

HeRe Is Your Ans

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$\frac{4}{7} + ( \frac{ - 1}{5} ) + \frac{2}{7} \times \frac{3}{5} - \frac{3}{2} \times \frac{4}{7} \\ \\ \frac{4}{7} - \frac{1}{5} + \frac{6}{35} - \frac{12}{14} \\ \\ \frac{9800 - 3430 + 2940 - 14700}{17150} \\ \\ \frac{ - 5390}{17150} \\ \\ - 0.31428571 \\ \\ - - - - - - - - - - - -$

$\frac{1}{5} \times( \frac{ - 3}{2} ) + \frac{4}{5} \times ( \frac{ - 2}{7}) - \frac{1}{6} \times ( \frac{ - 2}{7} ) \\ \\ \frac{ - 3}{10} - \frac{8}{35} + \frac{2}{42} \\ \\ \frac{ - 441 - 336 + 70}{1470} \\ \\ \frac{ - 707}{1470} \\ \\ - 0.48095238$

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