Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 3/81 from 1/18

1/18 - 3/81 is 1/54.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 81 is 162

    Next, find the equivalent fraction of both fractional numbers with denominator 162
  2. For the 1st fraction, since 18 × 9 = 162,
    1/18 = 1 × 9/18 × 9 = 9/162
  3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
    3/81 = 3 × 2/81 × 2 = 6/162
  4. Subtract the two like fractions:
    9/162 - 6/162 = 9 - 6/162 = 3/162
  5. After reducing the fraction, the answer is 1/54

MathStep (Works offline)

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

Related:

© everydaycalculation.com