Compare 18/12 and 20/42
1st number: 1 6/12, 2nd number: 20/42
18/12 is greater than 20/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
18/12 = 18 × 7/12 × 7 = 126/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
20/42 = 20 × 2/42 × 2 = 40/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 126/84 > 40/84 or 18/12 > 20/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12 and 20/42 18/12 and 40/42 18/24 and 20/42 18/12 and 20/84 54/12 and 20/42 18/12 and 60/42 18/36 and 20/42 90/12 and 20/42 18/60 and 20/42 18/84 and 20/42