Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/21 and 4/27

15/21 + 4/27 is 163/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 27 is 189

    Next, find the equivalent fraction of both fractional numbers with denominator 189
  2. For the 1st fraction, since 21 × 9 = 189,
    15/21 = 15 × 9/21 × 9 = 135/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    4/27 = 4 × 7/27 × 7 = 28/189
  4. Add the two like fractions:
    135/189 + 28/189 = 135 + 28/189 = 163/189
  5. So, 15/21 + 4/27 = 163/189

MathStep (Works offline)

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

Related:

© everydaycalculation.com