Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 63/42 from 9/24

1st number: 9/24, 2nd number: 1 21/42

9/24 - 63/42 is -9/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 24 and 42 is 168
  2. For the 1st fraction, since 24 × 7 = 168,
    9/24 = 9 × 7/24 × 7 = 63/168
  3. Likewise, for the 2nd fraction, since 42 × 4 = 168,
    63/42 = 63 × 4/42 × 4 = 252/168
  4. Subtract the two fractions:
    63/168 - 252/168 = 63 - 252/168 = -189/168
  5. After reducing the fraction, the answer is -9/8

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com