Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 84/20 and 72/30

1st number: 4 4/20, 2nd number: 2 12/30

84/20 + 72/30 is 33/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 30 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    84/20 = 84 × 3/20 × 3 = 252/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    72/30 = 72 × 2/30 × 2 = 144/60
  4. Add the two like fractions:
    252/60 + 144/60 = 252 + 144/60 = 396/60
  5. 396/60 simplified gives 33/5
  6. So, 84/20 + 72/30 = 33/5
    In mixed form: 63/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com