Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 70/90 and 45/20

1st number: 70/90, 2nd number: 2 5/20

70/90 + 45/20 is 109/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 20 is 180
  2. For the 1st fraction, since 90 × 2 = 180,
    70/90 = 70 × 2/90 × 2 = 140/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    45/20 = 45 × 9/20 × 9 = 405/180
  4. Add the two fractions:
    140/180 + 405/180 = 140 + 405/180 = 545/180
  5. After reducing the fraction, the answer is 109/36
  6. In mixed form: 31/36

MathStep (Works offline)

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

Related:

© everydaycalculation.com