Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/9 and 21/49

1st number: 7 7/9, 2nd number: 21/49

70/9 + 21/49 is 517/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 49 is 441
  2. For the 1st fraction, since 9 × 49 = 441,
    70/9 = 70 × 49/9 × 49 = 3430/441
  3. Likewise, for the 2nd fraction, since 49 × 9 = 441,
    21/49 = 21 × 9/49 × 9 = 189/441
  4. Add the two fractions:
    3430/441 + 189/441 = 3430 + 189/441 = 3619/441
  5. 3619/441 simplified gives 517/63
  6. So, 70/9 + 21/49 = 517/63
    In mixed form: 813/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com