Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 6/10 from 21/15

1st number: 1 6/15, 2nd number: 6/10

21/15 - 6/10 is 4/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 10 is 30
  2. For the 1st fraction, since 15 × 2 = 30,
    21/15 = 21 × 2/15 × 2 = 42/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    6/10 = 6 × 3/10 × 3 = 18/30
  4. Subtract the two fractions:
    42/30 - 18/30 = 42 - 18/30 = 24/30
  5. After reducing the fraction, the answer is 4/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com