Question

1. Using appropriate properties find
-1/2×3/5+3/2-3/5×5/4​

Answer 1

$- \frac{1}{2} \times \frac{3}{5} + \frac{3}{2} - \frac{3}{5} \times \frac{5}{4} \\ \\ - \frac{3}{10} + \frac{15 - 6}{10} - \frac{15}{20} \\ \\ - \frac{3}{10} + \frac{9}{10} - \frac{15}{20} \\ \\ \frac{ - 3 + 9}{10} - \frac{15}{20} \\ \\ \frac{6}{10} - \frac{15}{20} \\ \\ \frac{12 - 15}{20} \\ \\ \frac{ - 3}{20}$