Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/90 and 7/24

21/90 + 7/24 is 21/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 24 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    21/90 = 21 × 4/90 × 4 = 84/360
  3. Likewise, for the 2nd fraction, since 24 × 15 = 360,
    7/24 = 7 × 15/24 × 15 = 105/360
  4. Add the two like fractions:
    84/360 + 105/360 = 84 + 105/360 = 189/360
  5. 189/360 simplified gives 21/40
  6. So, 21/90 + 7/24 = 21/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com