Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 1/90 from 1/28

1/28 - 1/90 is 31/1260.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    1/28 = 1 × 45/28 × 45 = 45/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    1/90 = 1 × 14/90 × 14 = 14/1260
  4. Subtract the two like fractions:
    45/1260 - 14/1260 = 45 - 14/1260 = 31/1260

MathStep (Works offline)

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

Related:

© everydaycalculation.com