Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 90/20 and 5/84

1st number: 4 10/20, 2nd number: 5/84

90/20 + 5/84 is 383/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 84 is 420
  2. For the 1st fraction, since 20 × 21 = 420,
    90/20 = 90 × 21/20 × 21 = 1890/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    5/84 = 5 × 5/84 × 5 = 25/420
  4. Add the two fractions:
    1890/420 + 25/420 = 1890 + 25/420 = 1915/420
  5. After reducing the fraction, the answer is 383/84
  6. In mixed form: 447/84

MathStep (Works offline)

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

Related:

© everydaycalculation.com