Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 81/16 from 1/7

1st number: 1/7, 2nd number: 5 1/16

1/7 - 81/16 is -551/112.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 16 is 112

    Next, find the equivalent fraction of both fractional numbers with denominator 112
  2. For the 1st fraction, since 7 × 16 = 112,
    1/7 = 1 × 16/7 × 16 = 16/112
  3. Likewise, for the 2nd fraction, since 16 × 7 = 112,
    81/16 = 81 × 7/16 × 7 = 567/112
  4. Subtract the two like fractions:
    16/112 - 567/112 = 16 - 567/112 = -551/112

MathStep (Works offline)

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

Related:

© everydaycalculation.com