Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 84/40 from 84/18

1st number: 4 12/18, 2nd number: 2 4/40

84/18 - 84/40 is 77/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360
  2. For the 1st fraction, since 18 × 20 = 360,
    84/18 = 84 × 20/18 × 20 = 1680/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    84/40 = 84 × 9/40 × 9 = 756/360
  4. Subtract the two fractions:
    1680/360 - 756/360 = 1680 - 756/360 = 924/360
  5. After reducing the fraction, the answer is 77/30
  6. In mixed form: 217/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com