Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/25 and 84/90

20/25 + 84/90 is 26/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 90 is 450

    Next, find the equivalent fraction of both fractional numbers with denominator 450
  2. For the 1st fraction, since 25 × 18 = 450,
    20/25 = 20 × 18/25 × 18 = 360/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    84/90 = 84 × 5/90 × 5 = 420/450
  4. Add the two like fractions:
    360/450 + 420/450 = 360 + 420/450 = 780/450
  5. 780/450 simplified gives 26/15
  6. So, 20/25 + 84/90 = 26/15
    In mixed form: 111/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com