Compare 18/40 and 2/42
18/40 is greater than 2/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
18/40 = 18 × 21/40 × 21 = 378/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
2/42 = 2 × 20/42 × 20 = 40/840 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 378/840 > 40/840 or 18/40 > 2/42
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 2/42 18/40 and 4/42 18/80 and 2/42 18/40 and 2/84 54/40 and 2/42 18/40 and 6/42 90/40 and 2/42 18/40 and 10/42 18/40 and 14/42