Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 35/14 from 18/21

1st number: 18/21, 2nd number: 2 7/14

18/21 - 35/14 is -23/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 14 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 21 × 2 = 42,
    18/21 = 18 × 2/21 × 2 = 36/42
  3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
    35/14 = 35 × 3/14 × 3 = 105/42
  4. Subtract the two like fractions:
    36/42 - 105/42 = 36 - 105/42 = -69/42
  5. After reducing the fraction, the answer is -23/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com