Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 2/18 from 6/21

6/21 - 2/18 is 11/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 21 × 6 = 126,
    6/21 = 6 × 6/21 × 6 = 36/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    2/18 = 2 × 7/18 × 7 = 14/126
  4. Subtract the two like fractions:
    36/126 - 14/126 = 36 - 14/126 = 22/126
  5. After reducing the fraction, the answer is 11/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com