Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 35/8 from 21/20

1st number: 1 1/20, 2nd number: 4 3/8

21/20 - 35/8 is -133/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 20 × 2 = 40,
    21/20 = 21 × 2/20 × 2 = 42/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    35/8 = 35 × 5/8 × 5 = 175/40
  4. Subtract the two like fractions:
    42/40 - 175/40 = 42 - 175/40 = -133/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com