Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 40/98 from 30/21

1st number: 1 9/21, 2nd number: 40/98

30/21 - 40/98 is 50/49.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 98 is 294
  2. For the 1st fraction, since 21 × 14 = 294,
    30/21 = 30 × 14/21 × 14 = 420/294
  3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
    40/98 = 40 × 3/98 × 3 = 120/294
  4. Subtract the two fractions:
    420/294 - 120/294 = 420 - 120/294 = 300/294
  5. After reducing the fraction, the answer is 50/49
  6. In mixed form: 11/49

MathStep (Works offline)

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

Related:

© everydaycalculation.com