Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 84/80 from 12/30

1st number: 12/30, 2nd number: 1 4/80

12/30 - 84/80 is -13/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 80 is 240
  2. For the 1st fraction, since 30 × 8 = 240,
    12/30 = 12 × 8/30 × 8 = 96/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    84/80 = 84 × 3/80 × 3 = 252/240
  4. Subtract the two fractions:
    96/240 - 252/240 = 96 - 252/240 = -156/240
  5. After reducing the fraction, the answer is -13/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com