Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 40/21 from 35/56

1st number: 35/56, 2nd number: 1 19/21

35/56 - 40/21 is -215/168.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 21 is 168
  2. For the 1st fraction, since 56 × 3 = 168,
    35/56 = 35 × 3/56 × 3 = 105/168
  3. Likewise, for the 2nd fraction, since 21 × 8 = 168,
    40/21 = 40 × 8/21 × 8 = 320/168
  4. Subtract the two fractions:
    105/168 - 320/168 = 105 - 320/168 = -215/168

MathStep (Works offline)

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

Related:

© everydaycalculation.com