Question

hello everyone
help please
if you know then only answer
i know the answer which is $\frac{9}{20}$,but how
question-
using appropriate propeties find-
$-\frac{1}{2} *\frac{3}{5} +\frac{3}{2} -\frac{3}{5}* \frac{5}{4}$
the anwer which will help ,will be marked as brainliest

THANKS

Answer 1

(i) 711by54

711×54=3544

(ii) 57by−34

57×−34=−1528

(iii) −29by511

−29×511=−1099

(iv) −317by−5−4

−317×−5−4=15−68=−1568

Q2. Multiply:

(i) −517by51−60

−517×51−60=−255−1020=2551020=14

(ii) −611by−5536

−517×51−60=−255−1020=2551020=14

(iii) −825by−516

−825×−516=40400=110

(iv) 67by−4936

67×−4936=−76