Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/8 from 2/80

1st number: 2/80, 2nd number: 2 5/8

2/80 - 21/8 is -13/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 8 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    2/80 = 2 × 1/80 × 1 = 2/80
  3. Likewise, for the 2nd fraction, since 8 × 10 = 80,
    21/8 = 21 × 10/8 × 10 = 210/80
  4. Subtract the two like fractions:
    2/80 - 210/80 = 2 - 210/80 = -208/80
  5. After reducing the fraction, the answer is -13/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com