Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 3/42 from 49/40

1st number: 1 9/40, 2nd number: 3/42

49/40 - 3/42 is 323/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 42 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 40 × 21 = 840,
    49/40 = 49 × 21/40 × 21 = 1029/840
  3. Likewise, for the 2nd fraction, since 42 × 20 = 840,
    3/42 = 3 × 20/42 × 20 = 60/840
  4. Subtract the two like fractions:
    1029/840 - 60/840 = 1029 - 60/840 = 969/840
  5. After reducing the fraction, the answer is 323/280
  6. In mixed form: 143/280

MathStep (Works offline)

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

Related:

© everydaycalculation.com