Compare 18/84 and 25/80
18/84 is smaller than 25/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
18/84 = 18 × 20/84 × 20 = 360/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
25/80 = 25 × 21/80 × 21 = 525/1680 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 360/1680 < 525/1680 or 18/84 < 25/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/84 and 25/80 18/84 and 50/80 54/84 and 25/80 18/84 and 75/80 90/84 and 25/80