Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 15/12 from 56/90

1st number: 56/90, 2nd number: 1 3/12

56/90 - 15/12 is -113/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 12 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    56/90 = 56 × 2/90 × 2 = 112/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    15/12 = 15 × 15/12 × 15 = 225/180
  4. Subtract the two like fractions:
    112/180 - 225/180 = 112 - 225/180 = -113/180

MathStep (Works offline)

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

Related:

© everydaycalculation.com