Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 24/45 from 5/21

5/21 - 24/45 is -31/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 45 is 315
  2. For the 1st fraction, since 21 × 15 = 315,
    5/21 = 5 × 15/21 × 15 = 75/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    24/45 = 24 × 7/45 × 7 = 168/315
  4. Subtract the two fractions:
    75/315 - 168/315 = 75 - 168/315 = -93/315
  5. After reducing the fraction, the answer is -31/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com