Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 25/20 and 7/84

1st number: 1 5/20, 2nd number: 7/84

25/20 + 7/84 is 4/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    25/20 = 25 × 21/20 × 21 = 525/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    7/84 = 7 × 5/84 × 5 = 35/420
  4. Add the two like fractions:
    525/420 + 35/420 = 525 + 35/420 = 560/420
  5. 560/420 simplified gives 4/3
  6. So, 25/20 + 7/84 = 4/3
    In mixed form: 11/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com