Compare 70/84 and 10/20
70/84 is greater than 10/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
70/84 = 70 × 5/84 × 5 = 350/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
10/20 = 10 × 21/20 × 21 = 210/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 350/420 > 210/420 or 70/84 > 10/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84 and 10/40 70/84 and 30/20 70/84 and 10/60 70/84 and 50/20 70/84 and 70/20