Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 10/18 from 30/90

30/90 - 10/18 is -2/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 90 × 1 = 90,
    30/90 = 30 × 1/90 × 1 = 30/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    10/18 = 10 × 5/18 × 5 = 50/90
  4. Subtract the two like fractions:
    30/90 - 50/90 = 30 - 50/90 = -20/90
  5. After reducing the fraction, the answer is -2/9

MathStep (Works offline)

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

Related:

© everydaycalculation.com