Compare 9/42 and 40/12
1st number: 9/42, 2nd number: 3 4/12
9/42 is smaller than 40/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
9/42 = 9 × 2/42 × 2 = 18/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
40/12 = 40 × 7/12 × 7 = 280/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 18/84 < 280/84 or 9/42 < 40/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42 and 40/12 9/42 and 80/12 9/84 and 40/12 9/42 and 40/24 27/42 and 40/12 9/42 and 40/36 45/42 and 40/12 9/42 and 40/60 63/42 and 40/12 9/42 and 40/84