Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/64 from 21/25

21/25 - 21/64 is 819/1600.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 64 is 1600

    Next, find the equivalent fraction of both fractional numbers with denominator 1600
  2. For the 1st fraction, since 25 × 64 = 1600,
    21/25 = 21 × 64/25 × 64 = 1344/1600
  3. Likewise, for the 2nd fraction, since 64 × 25 = 1600,
    21/64 = 21 × 25/64 × 25 = 525/1600
  4. Subtract the two like fractions:
    1344/1600 - 525/1600 = 1344 - 525/1600 = 819/1600

MathStep (Works offline)

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

Related:

© everydaycalculation.com