Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 15/81 from 49/45

1st number: 1 4/45, 2nd number: 15/81

49/45 - 15/81 is 122/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 81 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 45 × 9 = 405,
    49/45 = 49 × 9/45 × 9 = 441/405
  3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
    15/81 = 15 × 5/81 × 5 = 75/405
  4. Subtract the two like fractions:
    441/405 - 75/405 = 441 - 75/405 = 366/405
  5. After reducing the fraction, the answer is 122/135

MathStep (Works offline)

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

Related:

© everydaycalculation.com