Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 84/45 and 12/72

1st number: 1 39/45, 2nd number: 12/72

84/45 + 12/72 is 61/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 45 × 8 = 360,
    84/45 = 84 × 8/45 × 8 = 672/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    12/72 = 12 × 5/72 × 5 = 60/360
  4. Add the two like fractions:
    672/360 + 60/360 = 672 + 60/360 = 732/360
  5. 732/360 simplified gives 61/30
  6. So, 84/45 + 12/72 = 61/30
    In mixed form: 21/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com