Question

1) 9/11 - 4/15
2) 3/5 +2/7

Answer 1

$\huge\red{AnsWeR}$

$9/11 - 4/15$

$=>135/165-44/165$

$=>91/165$

$\huge\red{AnsWeR}$

$3/5 +2/7$

$=>21/35+10/35$

$=>31/35$

Answer 2

Answer:

1. 91
2. 31

Step-by-step explanation:

9/11-4/15

lcm of 11 and 15 is 165

(9/11×165)-(4/15×165)

(9×15)-(4×11)

135-44

91

3/5+2/7

lcm of 5 and 7 is 35

(3/5×35)+(2/7×35)

(3×7)+(2×5)

21+10

31