Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 80/98 from 20/28

20/28 - 80/98 is -5/49.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 98 is 196

    Next, find the equivalent fraction of both fractional numbers with denominator 196
  2. For the 1st fraction, since 28 × 7 = 196,
    20/28 = 20 × 7/28 × 7 = 140/196
  3. Likewise, for the 2nd fraction, since 98 × 2 = 196,
    80/98 = 80 × 2/98 × 2 = 160/196
  4. Subtract the two like fractions:
    140/196 - 160/196 = 140 - 160/196 = -20/196
  5. After reducing the fraction, the answer is -5/49

MathStep (Works offline)

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

Related:

© everydaycalculation.com