Compare 12/9 and 40/42
1st number: 1 3/9, 2nd number: 40/42
12/9 is greater than 40/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
12/9 = 12 × 14/9 × 14 = 168/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
40/42 = 40 × 3/42 × 3 = 120/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 168/126 > 120/126 or 12/9 > 40/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/9 and 40/42 12/9 and 80/42 12/18 and 40/42 12/9 and 40/84 36/9 and 40/42 12/27 and 40/42 60/9 and 40/42 12/45 and 40/42 84/9 and 40/42 12/63 and 40/42