Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 18/9 from 48/21

1st number: 2 6/21, 2nd number: 2 0/9

48/21 - 18/9 is 2/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 9 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 21 × 3 = 63,
    48/21 = 48 × 3/21 × 3 = 144/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    18/9 = 18 × 7/9 × 7 = 126/63
  4. Subtract the two like fractions:
    144/63 - 126/63 = 144 - 126/63 = 18/63
  5. After reducing the fraction, the answer is 2/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com