Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 60/80 from 60/90

60/90 - 60/80 is -1/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 80 is 720
  2. For the 1st fraction, since 90 × 8 = 720,
    60/90 = 60 × 8/90 × 8 = 480/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    60/80 = 60 × 9/80 × 9 = 540/720
  4. Subtract the two fractions:
    480/720 - 540/720 = 480 - 540/720 = -60/720
  5. After reducing the fraction, the answer is -1/12

MathStep (Works offline)

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

Related:

© everydaycalculation.com