Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 49/45 from 2/21

1st number: 2/21, 2nd number: 1 4/45

2/21 - 49/45 is -313/315.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 45 is 315

    Next, find the equivalent fraction of both fractional numbers with denominator 315
  2. For the 1st fraction, since 21 × 15 = 315,
    2/21 = 2 × 15/21 × 15 = 30/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    49/45 = 49 × 7/45 × 7 = 343/315
  4. Subtract the two like fractions:
    30/315 - 343/315 = 30 - 343/315 = -313/315

MathStep (Works offline)

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

Related:

© everydaycalculation.com