Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 25/21 and 30/80

1st number: 1 4/21, 2nd number: 30/80

25/21 is greater than 30/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 80 is 1680

    Next, find the equivalent fraction of both fractional numbers with denominator 1680
  2. For the 1st fraction, since 21 × 80 = 1680,
    25/21 = 25 × 80/21 × 80 = 2000/1680
  3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
    30/80 = 30 × 21/80 × 21 = 630/1680
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 2000/1680 > 630/1680 or 25/21 > 30/80

MathStep (Works offline)

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

Related:

© everydaycalculation.com