Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/9 and 15/7

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

70/9 + 15/7 is 625/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 7 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 9 × 7 = 63,
    70/9 = 70 × 7/9 × 7 = 490/63
  3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
    15/7 = 15 × 9/7 × 9 = 135/63
  4. Add the two like fractions:
    490/63 + 135/63 = 490 + 135/63 = 625/63
  5. So, 70/9 + 15/7 = 625/63
    In mixed form: 958/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com