Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 45/60 from 10/21

10/21 - 45/60 is -23/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 60 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 21 × 20 = 420,
    10/21 = 10 × 20/21 × 20 = 200/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    45/60 = 45 × 7/60 × 7 = 315/420
  4. Subtract the two like fractions:
    200/420 - 315/420 = 200 - 315/420 = -115/420
  5. After reducing the fraction, the answer is -23/84

MathStep (Works offline)

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

Related:

© everydaycalculation.com