Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 3/84 and 45/20

1st number: 3/84, 2nd number: 2 5/20

3/84 + 45/20 is 16/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 20 is 420
  2. For the 1st fraction, since 84 × 5 = 420,
    3/84 = 3 × 5/84 × 5 = 15/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    45/20 = 45 × 21/20 × 21 = 945/420
  4. Add the two fractions:
    15/420 + 945/420 = 15 + 945/420 = 960/420
  5. After reducing the fraction, the answer is 16/7
  6. In mixed form: 22/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com