Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/21 and 56/35

1st number: 3 7/21, 2nd number: 1 21/35

70/21 + 56/35 is 74/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 35 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 21 × 5 = 105,
    70/21 = 70 × 5/21 × 5 = 350/105
  3. Likewise, for the 2nd fraction, since 35 × 3 = 105,
    56/35 = 56 × 3/35 × 3 = 168/105
  4. Add the two like fractions:
    350/105 + 168/105 = 350 + 168/105 = 518/105
  5. 518/105 simplified gives 74/15
  6. So, 70/21 + 56/35 = 74/15
    In mixed form: 414/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com