Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/10 from 25/9

1st number: 2 7/9, 2nd number: 2 1/10

25/9 - 21/10 is 61/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 10 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 9 × 10 = 90,
    25/9 = 25 × 10/9 × 10 = 250/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    21/10 = 21 × 9/10 × 9 = 189/90
  4. Subtract the two like fractions:
    250/90 - 189/90 = 250 - 189/90 = 61/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com