Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/54 and 21/40

18/54 + 21/40 is 103/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 40 is 1080

    Next, find the equivalent fraction of both fractional numbers with denominator 1080
  2. For the 1st fraction, since 54 × 20 = 1080,
    18/54 = 18 × 20/54 × 20 = 360/1080
  3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
    21/40 = 21 × 27/40 × 27 = 567/1080
  4. Add the two like fractions:
    360/1080 + 567/1080 = 360 + 567/1080 = 927/1080
  5. 927/1080 simplified gives 103/120
  6. So, 18/54 + 21/40 = 103/120

MathStep (Works offline)

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

Related:

© everydaycalculation.com