Question

Solve using appropriate
appropriate properties !'-
Ext- g)
3/2(5/2)-2/5+2/5(-9/4)​

Answer 1

Answer:

$\frac{3}{2} ( \frac{5}{2} ) - \frac{2}{5} + \frac{2}{5} ( \frac{ - 9}{4} ) \\ = ( \frac{3}{2} \times \frac{5}{2} ) - \frac{2}{5} + ( \frac{2}{5} \times \frac{ - 9}{4} ) \\ = ( \frac{3}{2} \times \frac{5}{2} ) - \frac{2}{5} + ( \frac{ _{1 \: \: \: } \cancel 2}{5} \times \frac{ - 9}{ \cancel 4 _{ \: \: \: 2} } ) \\ = \frac{15}{4} - \frac{2}{5} + \frac{ - 9}{10} \\ = \frac{75 - 8 + ( - 18)}{20} \\ = \frac{75 - 8 - 18}{20} \\ \boxed{= \: \: \underline{ \underline{ \large \frac{49}{20} }}}$