Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 63/20 and 98/70

1st number: 3 3/20, 2nd number: 1 28/70

63/20 + 98/70 is 91/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 70 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    63/20 = 63 × 7/20 × 7 = 441/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    98/70 = 98 × 2/70 × 2 = 196/140
  4. Add the two like fractions:
    441/140 + 196/140 = 441 + 196/140 = 637/140
  5. 637/140 simplified gives 91/20
  6. So, 63/20 + 98/70 = 91/20
    In mixed form: 411/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com