Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 9/7 and 70/40

1st number: 1 2/7, 2nd number: 1 30/40

9/7 + 70/40 is 85/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 280
  2. For the 1st fraction, since 7 × 40 = 280,
    9/7 = 9 × 40/7 × 40 = 360/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    70/40 = 70 × 7/40 × 7 = 490/280
  4. Add the two fractions:
    360/280 + 490/280 = 360 + 490/280 = 850/280
  5. After reducing the fraction, the answer is 85/28
  6. In mixed form: 31/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com