Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 8/10 from 21/12

1st number: 1 9/12, 2nd number: 8/10

21/12 - 8/10 is 19/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 10 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    21/12 = 21 × 5/12 × 5 = 105/60
  3. Likewise, for the 2nd fraction, since 10 × 6 = 60,
    8/10 = 8 × 6/10 × 6 = 48/60
  4. Subtract the two like fractions:
    105/60 - 48/60 = 105 - 48/60 = 57/60
  5. After reducing the fraction, the answer is 19/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com