Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 50/30 from 70/80

1st number: 70/80, 2nd number: 1 20/30

70/80 - 50/30 is -19/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 30 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    70/80 = 70 × 3/80 × 3 = 210/240
  3. Likewise, for the 2nd fraction, since 30 × 8 = 240,
    50/30 = 50 × 8/30 × 8 = 400/240
  4. Subtract the two like fractions:
    210/240 - 400/240 = 210 - 400/240 = -190/240
  5. After reducing the fraction, the answer is -19/24

MathStep (Works offline)

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

Related:

© everydaycalculation.com