Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/7 and 70/9

1st number: 5/7, 2nd number: 7 7/9

5/7 + 70/9 is 535/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 9 is 63
  2. For the 1st fraction, since 7 × 9 = 63,
    5/7 = 5 × 9/7 × 9 = 45/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    70/9 = 70 × 7/9 × 7 = 490/63
  4. Add the two fractions:
    45/63 + 490/63 = 45 + 490/63 = 535/63
  5. So, 5/7 + 70/9 = 535/63
    In mixed form: 831/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com