Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 7/8 and 21/27

7/8 + 21/27 is 119/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 27 is 216

    Next, find the equivalent fraction of both fractional numbers with denominator 216
  2. For the 1st fraction, since 8 × 27 = 216,
    7/8 = 7 × 27/8 × 27 = 189/216
  3. Likewise, for the 2nd fraction, since 27 × 8 = 216,
    21/27 = 21 × 8/27 × 8 = 168/216
  4. Add the two like fractions:
    189/216 + 168/216 = 189 + 168/216 = 357/216
  5. 357/216 simplified gives 119/72
  6. So, 7/8 + 21/27 = 119/72
    In mixed form: 147/72

MathStep (Works offline)

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

Related:

© everydaycalculation.com