Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/36 from 90/10

1st number: 9 0/10, 2nd number: 21/36

90/10 - 21/36 is 101/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 36 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 10 × 18 = 180,
    90/10 = 90 × 18/10 × 18 = 1620/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    21/36 = 21 × 5/36 × 5 = 105/180
  4. Subtract the two like fractions:
    1620/180 - 105/180 = 1620 - 105/180 = 1515/180
  5. After reducing the fraction, the answer is 101/12
  6. In mixed form: 85/12

MathStep (Works offline)

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

Related:

© everydaycalculation.com