Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 16/80 from 20/18

1st number: 1 2/18, 2nd number: 16/80

20/18 - 16/80 is 41/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 80 is 720
  2. For the 1st fraction, since 18 × 40 = 720,
    20/18 = 20 × 40/18 × 40 = 800/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    16/80 = 16 × 9/80 × 9 = 144/720
  4. Subtract the two fractions:
    800/720 - 144/720 = 800 - 144/720 = 656/720
  5. After reducing the fraction, the answer is 41/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com