Compare 4/90 and 3/40
4/90 is smaller 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,
4/90 = 4 × 4/90 × 4 = 16/360 - 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
- 16/360 < 27/360 or 4/90 < 3/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/90 and 3/40 4/90 and 6/40 4/90 and 3/80 12/90 and 3/40 4/90 and 9/40 20/90 and 3/40 4/90 and 15/40 28/90 and 3/40 4/90 and 21/40