Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 25/8 from 49/90

1st number: 49/90, 2nd number: 3 1/8

49/90 - 25/8 is -929/360.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 8 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 90 × 4 = 360,
    49/90 = 49 × 4/90 × 4 = 196/360
  3. Likewise, for the 2nd fraction, since 8 × 45 = 360,
    25/8 = 25 × 45/8 × 45 = 1125/360
  4. Subtract the two like fractions:
    196/360 - 1125/360 = 196 - 1125/360 = -929/360

MathStep (Works offline)

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

Related:

© everydaycalculation.com