Compare 70/42 and 18/15
1st number: 1 28/42, 2nd number: 1 3/15
70/42 is greater than 18/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
70/42 = 70 × 5/42 × 5 = 350/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
18/15 = 18 × 14/15 × 14 = 252/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 350/210 > 252/210 or 70/42 > 18/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42 and 36/15 70/84 and 18/15 70/42 and 18/30 70/42 and 54/15 70/42 and 18/45 70/42 and 90/15 70/42 and 18/75