Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 70/15 from 21/6

1st number: 3 3/6, 2nd number: 4 10/15

21/6 - 70/15 is -7/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 15 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 15 × 2 = 30,
    70/15 = 70 × 2/15 × 2 = 140/30
  4. Subtract the two like fractions:
    105/30 - 140/30 = 105 - 140/30 = -35/30
  5. After reducing the fraction, the answer is -7/6

MathStep (Works offline)

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

Related:

© everydaycalculation.com