Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 18/90 from 9/75

9/75 - 18/90 is -2/25.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 90 is 450
  2. For the 1st fraction, since 75 × 6 = 450,
    9/75 = 9 × 6/75 × 6 = 54/450
  3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
    18/90 = 18 × 5/90 × 5 = 90/450
  4. Subtract the two fractions:
    54/450 - 90/450 = 54 - 90/450 = -36/450
  5. After reducing the fraction, the answer is -2/25

MathStep (Works offline)

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

Related:

© everydaycalculation.com