Compare 84/40 and 80/18
1st number: 2 4/40, 2nd number: 4 8/18
84/40 is smaller than 80/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
84/40 = 84 × 9/40 × 9 = 756/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
80/18 = 80 × 20/18 × 20 = 1600/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 756/360 < 1600/360 or 84/40 < 80/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80 and 80/18 84/40 and 80/36 84/40 and 80/54 84/40 and 80/90