Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/90 and 25/10

1st number: 21/90, 2nd number: 2 5/10

21/90 + 25/10 is 41/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 10 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 90 × 1 = 90,
    21/90 = 21 × 1/90 × 1 = 21/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    25/10 = 25 × 9/10 × 9 = 225/90
  4. Add the two like fractions:
    21/90 + 225/90 = 21 + 225/90 = 246/90
  5. 246/90 simplified gives 41/15
  6. So, 21/90 + 25/10 = 41/15
    In mixed form: 211/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com