Compare 15/90 and 3/40
15/90 is greater than 3/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
15/90 = 15 × 4/90 × 4 = 60/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
3/40 = 3 × 9/40 × 9 = 27/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 60/360 > 27/360 or 15/90 > 3/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90 and 3/40 15/90 and 6/40 15/90 and 3/80 45/90 and 3/40 15/90 and 9/40 75/90 and 3/40 15/90 and 15/40 15/90 and 21/40