Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 84/72 and 70/90

1st number: 1 12/72, 2nd number: 70/90

84/72 is greater than 70/90

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 90 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    84/72 = 84 × 5/72 × 5 = 420/360
  3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
    70/90 = 70 × 4/90 × 4 = 280/360
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 420/360 > 280/360 or 84/72 > 70/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com