Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 90/80 from 18/2

1st number: 9 0/2, 2nd number: 1 10/80

18/2 - 90/80 is 63/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 2 × 40 = 80,
    18/2 = 18 × 40/2 × 40 = 720/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    90/80 = 90 × 1/80 × 1 = 90/80
  4. Subtract the two like fractions:
    720/80 - 90/80 = 720 - 90/80 = 630/80
  5. After reducing the fraction, the answer is 63/8
  6. In mixed form: 77/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com