Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/30 and 42/25

1st number: 2 12/30, 2nd number: 1 17/25

72/30 + 42/25 is 102/25.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 25 is 150

    Next, find the equivalent fraction of both fractional numbers with denominator 150
  2. For the 1st fraction, since 30 × 5 = 150,
    72/30 = 72 × 5/30 × 5 = 360/150
  3. Likewise, for the 2nd fraction, since 25 × 6 = 150,
    42/25 = 42 × 6/25 × 6 = 252/150
  4. Add the two like fractions:
    360/150 + 252/150 = 360 + 252/150 = 612/150
  5. 612/150 simplified gives 102/25
  6. So, 72/30 + 42/25 = 102/25
    In mixed form: 42/25

MathStep (Works offline)

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

Related:

© everydaycalculation.com