Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 54/21 and 90/16

1st number: 2 12/21, 2nd number: 5 10/16

54/21 + 90/16 is 459/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 16 is 336
  2. For the 1st fraction, since 21 × 16 = 336,
    54/21 = 54 × 16/21 × 16 = 864/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    90/16 = 90 × 21/16 × 21 = 1890/336
  4. Add the two fractions:
    864/336 + 1890/336 = 864 + 1890/336 = 2754/336
  5. 2754/336 simplified gives 459/56
  6. So, 54/21 + 90/16 = 459/56
    In mixed form: 811/56

MathStep (Works offline)

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

Related:

© everydaycalculation.com