Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 35/18 from 7/15

1st number: 7/15, 2nd number: 1 17/18

7/15 - 35/18 is -133/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 18 is 90
  2. For the 1st fraction, since 15 × 6 = 90,
    7/15 = 7 × 6/15 × 6 = 42/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    35/18 = 35 × 5/18 × 5 = 175/90
  4. Subtract the two fractions:
    42/90 - 175/90 = 42 - 175/90 = -133/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com