Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/72 and 12/10

1st number: 21/72, 2nd number: 1 2/10

21/72 + 12/10 is 179/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 10 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    21/72 = 21 × 5/72 × 5 = 105/360
  3. Likewise, for the 2nd fraction, since 10 × 36 = 360,
    12/10 = 12 × 36/10 × 36 = 432/360
  4. Add the two like fractions:
    105/360 + 432/360 = 105 + 432/360 = 537/360
  5. 537/360 simplified gives 179/120
  6. So, 21/72 + 12/10 = 179/120
    In mixed form: 159/120

MathStep (Works offline)

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

Related:

© everydaycalculation.com