Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 20/15 from 9/10

1st number: 9/10, 2nd number: 1 5/15

9/10 - 20/15 is -13/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 15 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 10 × 3 = 30,
    9/10 = 9 × 3/10 × 3 = 27/30
  3. Likewise, for the 2nd fraction, since 15 × 2 = 30,
    20/15 = 20 × 2/15 × 2 = 40/30
  4. Subtract the two like fractions:
    27/30 - 40/30 = 27 - 40/30 = -13/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com