Compare 70/21 and 1/18
1st number: 3 7/21, 2nd number: 1/18
70/21 is greater than 1/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 21 × 6 = 126,
70/21 = 70 × 6/21 × 6 = 420/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
1/18 = 1 × 7/18 × 7 = 7/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 420/126 > 7/126 or 70/21 > 1/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21 and 2/18 70/42 and 1/18 70/21 and 1/36 70/21 and 3/18 70/63 and 1/18 70/21 and 1/54 70/21 and 5/18 70/21 and 1/90 70/21 and 7/18