Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 7/81 from 45/6

1st number: 7 3/6, 2nd number: 7/81

45/6 - 7/81 is 1201/162.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 81 is 162

    Next, find the equivalent fraction of both fractional numbers with denominator 162
  2. For the 1st fraction, since 6 × 27 = 162,
    45/6 = 45 × 27/6 × 27 = 1215/162
  3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
    7/81 = 7 × 2/81 × 2 = 14/162
  4. Subtract the two like fractions:
    1215/162 - 14/162 = 1215 - 14/162 = 1201/162
  5. In mixed form: 767/162

MathStep (Works offline)

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

Related:

© everydaycalculation.com