Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 49/36 from 45/80

1st number: 45/80, 2nd number: 1 13/36

45/80 - 49/36 is -115/144.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 36 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    45/80 = 45 × 9/80 × 9 = 405/720
  3. Likewise, for the 2nd fraction, since 36 × 20 = 720,
    49/36 = 49 × 20/36 × 20 = 980/720
  4. Subtract the two like fractions:
    405/720 - 980/720 = 405 - 980/720 = -575/720
  5. After reducing the fraction, the answer is -115/144

MathStep (Works offline)

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

Related:

© everydaycalculation.com