Compare 4/72 and 90/30
1st number: 4/72, 2nd number: 3 0/30
4/72 is smaller than 90/30
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 30 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Likewise, for the 2nd fraction, since 30 × 12 = 360,
90/30 = 90 × 12/30 × 12 = 1080/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 20/360 < 1080/360 or 4/72 < 90/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/72 and 90/30 4/72 and 90/60 12/72 and 90/30 20/72 and 90/30 28/72 and 90/30