Question

FIND : (a) - 9/10 + 22/15 (b) 7/24-17/36

Answer 1

hope this answer is helpful to you

Answer 2

(1)..................

• LCM for 10, 15 is :

→ 5 × 2 × 3

→ 30

→ -9/10 × 3/3 + 22/15 × 2/2

→ -27/30 + 44/30

Now the denominators are equal :

→ -27 + 44/30

→ 17/30

(2)................

• LCM for 24 and 36 :

→ 4 × 3 × 2 × 3

→ 72

→ 7 × 3/24 × 3 - 17/36 × 2/2

Now the denominators are equal :

→ 21/72 - 34/72

→ 21 - 34/72

→ -13/72