Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 98/80 from 14/42

1st number: 14/42, 2nd number: 1 18/80

14/42 - 98/80 is -107/120.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 80 is 1680
  2. For the 1st fraction, since 42 × 40 = 1680,
    14/42 = 14 × 40/42 × 40 = 560/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    98/80 = 98 × 21/80 × 21 = 2058/1680
  4. Subtract the two fractions:
    560/1680 - 2058/1680 = 560 - 2058/1680 = -1498/1680
  5. After reducing the fraction, the answer is -107/120

MathStep (Works offline)

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

Related:

© everydaycalculation.com