Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/48 and 42/40

1st number: 1 24/48, 2nd number: 1 2/40

72/48 + 42/40 is 51/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 48 and 40 is 240
  2. For the 1st fraction, since 48 × 5 = 240,
    72/48 = 72 × 5/48 × 5 = 360/240
  3. Likewise, for the 2nd fraction, since 40 × 6 = 240,
    42/40 = 42 × 6/40 × 6 = 252/240
  4. Add the two fractions:
    360/240 + 252/240 = 360 + 252/240 = 612/240
  5. 612/240 simplified gives 51/20
  6. So, 72/48 + 42/40 = 51/20
    In mixed form: 211/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com