Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/18 and 4/80

1st number: 4 0/18, 2nd number: 4/80

72/18 + 4/80 is 81/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 18 × 40 = 720,
    72/18 = 72 × 40/18 × 40 = 2880/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    4/80 = 4 × 9/80 × 9 = 36/720
  4. Add the two like fractions:
    2880/720 + 36/720 = 2880 + 36/720 = 2916/720
  5. 2916/720 simplified gives 81/20
  6. So, 72/18 + 4/80 = 81/20
    In mixed form: 41/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com