Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 8/15 from 3/28

3/28 - 8/15 is -179/420.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 15 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 28 × 15 = 420,
    3/28 = 3 × 15/28 × 15 = 45/420
  3. Likewise, for the 2nd fraction, since 15 × 28 = 420,
    8/15 = 8 × 28/15 × 28 = 224/420
  4. Subtract the two like fractions:
    45/420 - 224/420 = 45 - 224/420 = -179/420

MathStep (Works offline)

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

Related:

© everydaycalculation.com