Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 7/5 from 21/6

1st number: 3 3/6, 2nd number: 1 2/5

21/6 - 7/5 is 21/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 5 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 6 × 5 = 30,
    21/6 = 21 × 5/6 × 5 = 105/30
  3. Likewise, for the 2nd fraction, since 5 × 6 = 30,
    7/5 = 7 × 6/5 × 6 = 42/30
  4. Subtract the two like fractions:
    105/30 - 42/30 = 105 - 42/30 = 63/30
  5. After reducing the fraction, the answer is 21/10
  6. In mixed form: 21/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com