Compare 90/15 and 70/84
1st number: 6 0/15, 2nd number: 70/84
90/15 is greater than 70/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
90/15 = 90 × 28/15 × 28 = 2520/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2520/420 > 350/420 or 90/15 > 70/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30 and 70/84 90/45 and 70/84 90/75 and 70/84