Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 3/30 from 40/28

1st number: 1 12/28, 2nd number: 3/30

40/28 - 3/30 is 93/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 30 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 28 × 15 = 420,
    40/28 = 40 × 15/28 × 15 = 600/420
  3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
    3/30 = 3 × 14/30 × 14 = 42/420
  4. Subtract the two like fractions:
    600/420 - 42/420 = 600 - 42/420 = 558/420
  5. After reducing the fraction, the answer is 93/70
  6. In mixed form: 123/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com