Question

explain me...
q no 13 (1 And 2)​

Answer 1

Step-by-step explanation:

1) {7/5 ×(-3/2)}+{7/5×5/12}

= 7/5(-3/12+5/12)

=7/5(-3+5/12)

=7/5(2/12)

=7/5×1/6

=7/30

2) {9/16×4/12}+{9/16×-3/9}

=9/16{4/12+(-3/9)}

=9/16{1/3-1/3}

=9/16×0

=0

Answer 2

Answer:

(i) {7/5*[-3/12]}+{7/5*5/12}. (take 7/5 as common)

7/5*{[-3/12]+5/12}

7/5*(2/12)

7/5*2/12

14/60

(ii) {9/16*4/12}+{9/16*-3/9}. (take 9/16 as common)

9/16*{4/12+(-3/9)}. (take LCM of 12 and 9)

LCM= 36

9/16{[3*(4/12)]+[4*(-3/9)]

9/16{12/36+(-12/36)}

9/16 (12/36-12/36)

9/16 ans