Compare 12/40 and 9/70
12/40 is greater than 9/70
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
9/70 = 9 × 4/70 × 4 = 36/280 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 84/280 > 36/280 or 12/40 > 9/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/40 and 9/70 12/40 and 18/70 12/80 and 9/70 36/40 and 9/70 12/40 and 27/70 60/40 and 9/70 12/40 and 45/70 84/40 and 9/70 12/40 and 63/70