Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/70 from 12/3

1st number: 4 0/3, 2nd number: 21/70

12/3 - 21/70 is 37/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 70 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 3 × 70 = 210,
    12/3 = 12 × 70/3 × 70 = 840/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    21/70 = 21 × 3/70 × 3 = 63/210
  4. Subtract the two like fractions:
    840/210 - 63/210 = 840 - 63/210 = 777/210
  5. After reducing the fraction, the answer is 37/10
  6. In mixed form: 37/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com