Compare 72/18 and 70/7
1st number: 4 0/18, 2nd number: 10 0/7
72/18 is smaller than 70/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
72/18 = 72 × 7/18 × 7 = 504/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
70/7 = 70 × 18/7 × 18 = 1260/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 504/126 < 1260/126 or 72/18 < 70/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/36 and 70/7 72/18 and 70/14 72/54 and 70/7 72/18 and 70/21 72/90 and 70/7 72/18 and 70/35 72/18 and 70/49