Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 30/81 from 24/15

1st number: 1 9/15, 2nd number: 30/81

24/15 - 30/81 is 166/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 81 is 405
  2. For the 1st fraction, since 15 × 27 = 405,
    24/15 = 24 × 27/15 × 27 = 648/405
  3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
    30/81 = 30 × 5/81 × 5 = 150/405
  4. Subtract the two fractions:
    648/405 - 150/405 = 648 - 150/405 = 498/405
  5. After reducing the fraction, the answer is 166/135
  6. In mixed form: 131/135

MathStep (Works offline)

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

Related:

© everydaycalculation.com