Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 54/42 and 18/9

1st number: 1 12/42, 2nd number: 2 0/9

54/42 + 18/9 is 23/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 9 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 42 × 3 = 126,
    54/42 = 54 × 3/42 × 3 = 162/126
  3. Likewise, for the 2nd fraction, since 9 × 14 = 126,
    18/9 = 18 × 14/9 × 14 = 252/126
  4. Add the two like fractions:
    162/126 + 252/126 = 162 + 252/126 = 414/126
  5. 414/126 simplified gives 23/7
  6. So, 54/42 + 18/9 = 23/7
    In mixed form: 32/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com