Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 80/14 from 30/18

1st number: 1 12/18, 2nd number: 5 10/14

30/18 - 80/14 is -85/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 14 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    30/18 = 30 × 7/18 × 7 = 210/126
  3. Likewise, for the 2nd fraction, since 14 × 9 = 126,
    80/14 = 80 × 9/14 × 9 = 720/126
  4. Subtract the two like fractions:
    210/126 - 720/126 = 210 - 720/126 = -510/126
  5. After reducing the fraction, the answer is -85/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com