Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 1/10 from 5/81

5/81 - 1/10 is -31/810.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 10 is 810

    Next, find the equivalent fraction of both fractional numbers with denominator 810
  2. For the 1st fraction, since 81 × 10 = 810,
    5/81 = 5 × 10/81 × 10 = 50/810
  3. Likewise, for the 2nd fraction, since 10 × 81 = 810,
    1/10 = 1 × 81/10 × 81 = 81/810
  4. Subtract the two like fractions:
    50/810 - 81/810 = 50 - 81/810 = -31/810

MathStep (Works offline)

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

Related:

© everydaycalculation.com