Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 90/20 and 40/9

1st number: 4 10/20, 2nd number: 4 4/9

90/20 + 40/9 is 161/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    90/20 = 90 × 9/20 × 9 = 810/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    40/9 = 40 × 20/9 × 20 = 800/180
  4. Add the two fractions:
    810/180 + 800/180 = 810 + 800/180 = 1610/180
  5. After reducing the fraction, the answer is 161/18
  6. In mixed form: 817/18

MathStep (Works offline)

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

Related:

© everydaycalculation.com