Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 3/20 from 63/28

1st number: 2 7/28, 2nd number: 3/20

63/28 - 3/20 is 21/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 28 × 5 = 140,
    63/28 = 63 × 5/28 × 5 = 315/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    3/20 = 3 × 7/20 × 7 = 21/140
  4. Subtract the two like fractions:
    315/140 - 21/140 = 315 - 21/140 = 294/140
  5. After reducing the fraction, the answer is 21/10
  6. In mixed form: 21/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com