Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 18/80 from 18/10

1st number: 1 8/10, 2nd number: 18/80

18/10 - 18/80 is 63/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 80 is 80
  2. For the 1st fraction, since 10 × 8 = 80,
    18/10 = 18 × 8/10 × 8 = 144/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    18/80 = 18 × 1/80 × 1 = 18/80
  4. Subtract the two fractions:
    144/80 - 18/80 = 144 - 18/80 = 126/80
  5. After reducing the fraction, the answer is 63/40
  6. In mixed form: 123/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com