Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 49/18 from 2/21

1st number: 2/21, 2nd number: 2 13/18

2/21 - 49/18 is -331/126.

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,
    2/21 = 2 × 6/21 × 6 = 12/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    49/18 = 49 × 7/18 × 7 = 343/126
  4. Subtract the two like fractions:
    12/126 - 343/126 = 12 - 343/126 = -331/126

MathStep (Works offline)

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

Related:

© everydaycalculation.com