Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 2/80 from 21/3

1st number: 7 0/3, 2nd number: 2/80

21/3 - 2/80 is 279/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 80 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 3 × 80 = 240,
    21/3 = 21 × 80/3 × 80 = 1680/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    2/80 = 2 × 3/80 × 3 = 6/240
  4. Subtract the two like fractions:
    1680/240 - 6/240 = 1680 - 6/240 = 1674/240
  5. After reducing the fraction, the answer is 279/40
  6. In mixed form: 639/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com