Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 3/30 from 21/14

1st number: 1 7/14, 2nd number: 3/30

21/14 - 3/30 is 7/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 14 × 15 = 210,
    21/14 = 21 × 15/14 × 15 = 315/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    3/30 = 3 × 7/30 × 7 = 21/210
  4. Subtract the two like fractions:
    315/210 - 21/210 = 315 - 21/210 = 294/210
  5. After reducing the fraction, the answer is 7/5
  6. In mixed form: 12/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com