Compare 18/40 and 1/45
18/40 is greater than 1/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
18/40 = 18 × 9/40 × 9 = 162/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
1/45 = 1 × 8/45 × 8 = 8/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 162/360 > 8/360 or 18/40 > 1/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/40 and 1/45 18/40 and 2/45 18/80 and 1/45 18/40 and 1/90 54/40 and 1/45 18/40 and 3/45 90/40 and 1/45 18/40 and 5/45 18/40 and 7/45