Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/7 and 80/40

1st number: 1 2/7, 2nd number: 2 0/40

9/7 + 80/40 is 23/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 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,
    80/40 = 80 × 7/40 × 7 = 560/280
  4. Add the two like fractions:
    360/280 + 560/280 = 360 + 560/280 = 920/280
  5. 920/280 simplified gives 23/7
  6. So, 9/7 + 80/40 = 23/7
    In mixed form: 32/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com