Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 15/45 from 70/84

70/84 - 15/45 is 1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 45 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 84 × 15 = 1260,
    70/84 = 70 × 15/84 × 15 = 1050/1260
  3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
    15/45 = 15 × 28/45 × 28 = 420/1260
  4. Subtract the two like fractions:
    1050/1260 - 420/1260 = 1050 - 420/1260 = 630/1260
  5. After reducing the fraction, the answer is 1/2

MathStep (Works offline)

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

Related:

© everydaycalculation.com