Compare 15/70 and 98/80
1st number: 15/70, 2nd number: 1 18/80
15/70 is smaller than 98/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
15/70 = 15 × 8/70 × 8 = 120/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
98/80 = 98 × 7/80 × 7 = 686/560 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 120/560 < 686/560 or 15/70 < 98/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70 and 98/80 45/70 and 98/80 75/70 and 98/80