Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 20/21 from 70/32

1st number: 2 6/32, 2nd number: 20/21

70/32 - 20/21 is 415/336.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 32 and 21 is 672

    Next, find the equivalent fraction of both fractional numbers with denominator 672
  2. For the 1st fraction, since 32 × 21 = 672,
    70/32 = 70 × 21/32 × 21 = 1470/672
  3. Likewise, for the 2nd fraction, since 21 × 32 = 672,
    20/21 = 20 × 32/21 × 32 = 640/672
  4. Subtract the two like fractions:
    1470/672 - 640/672 = 1470 - 640/672 = 830/672
  5. After reducing the fraction, the answer is 415/336
  6. In mixed form: 179/336

MathStep (Works offline)

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

Related:

© everydaycalculation.com