Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 90/72 from 84/15

1st number: 5 9/15, 2nd number: 1 18/72

84/15 - 90/72 is 87/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 72 is 360
  2. For the 1st fraction, since 15 × 24 = 360,
    84/15 = 84 × 24/15 × 24 = 2016/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    90/72 = 90 × 5/72 × 5 = 450/360
  4. Subtract the two fractions:
    2016/360 - 450/360 = 2016 - 450/360 = 1566/360
  5. After reducing the fraction, the answer is 87/20
  6. In mixed form: 47/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com