Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 28/9 from 45/40

1st number: 1 5/40, 2nd number: 3 1/9

45/40 - 28/9 is -143/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 9 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    45/40 = 45 × 9/40 × 9 = 405/360
  3. Likewise, for the 2nd fraction, since 9 × 40 = 360,
    28/9 = 28 × 40/9 × 40 = 1120/360
  4. Subtract the two like fractions:
    405/360 - 1120/360 = 405 - 1120/360 = -715/360
  5. After reducing the fraction, the answer is -143/72

MathStep (Works offline)

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

Related:

© everydaycalculation.com