Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 54/8 and 72/20

1st number: 6 6/8, 2nd number: 3 12/20

54/8 + 72/20 is 207/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 20 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    54/8 = 54 × 5/8 × 5 = 270/40
  3. Likewise, for the 2nd fraction, since 20 × 2 = 40,
    72/20 = 72 × 2/20 × 2 = 144/40
  4. Add the two like fractions:
    270/40 + 144/40 = 270 + 144/40 = 414/40
  5. 414/40 simplified gives 207/20
  6. So, 54/8 + 72/20 = 207/20
    In mixed form: 107/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com