Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/42 from 1/50

1/50 - 21/42 is -12/25.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 42 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 50 × 21 = 1050,
    1/50 = 1 × 21/50 × 21 = 21/1050
  3. Likewise, for the 2nd fraction, since 42 × 25 = 1050,
    21/42 = 21 × 25/42 × 25 = 525/1050
  4. Subtract the two like fractions:
    21/1050 - 525/1050 = 21 - 525/1050 = -504/1050
  5. After reducing the fraction, the answer is -12/25

MathStep (Works offline)

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

Related:

© everydaycalculation.com