Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 63/10 and 72/28

1st number: 6 3/10, 2nd number: 2 16/28

63/10 + 72/28 is 621/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 28 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 10 × 14 = 140,
    63/10 = 63 × 14/10 × 14 = 882/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    72/28 = 72 × 5/28 × 5 = 360/140
  4. Add the two like fractions:
    882/140 + 360/140 = 882 + 360/140 = 1242/140
  5. 1242/140 simplified gives 621/70
  6. So, 63/10 + 72/28 = 621/70
    In mixed form: 861/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com