Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 70/30 and 40/7

1st number: 2 10/30, 2nd number: 5 5/7

70/30 + 40/7 is 169/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 7 is 210
  2. For the 1st fraction, since 30 × 7 = 210,
    70/30 = 70 × 7/30 × 7 = 490/210
  3. Likewise, for the 2nd fraction, since 7 × 30 = 210,
    40/7 = 40 × 30/7 × 30 = 1200/210
  4. Add the two fractions:
    490/210 + 1200/210 = 490 + 1200/210 = 1690/210
  5. After reducing the fraction, the answer is 169/21
  6. In mixed form: 81/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com