Compare 10/45 and 90/72
1st number: 10/45, 2nd number: 1 18/72
10/45 is smaller than 90/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
10/45 = 10 × 8/45 × 8 = 80/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 80/360 < 450/360 or 10/45 < 90/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/45 and 90/72 10/90 and 90/72 30/45 and 90/72 50/45 and 90/72 70/45 and 90/72