Compare 12/20 and 70/40
1st number: 12/20, 2nd number: 1 30/40
12/20 is smaller than 70/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
12/20 = 12 × 2/20 × 2 = 24/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
70/40 = 70 × 1/40 × 1 = 70/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 24/40 < 70/40 or 12/20 < 70/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/20 and 70/40 12/40 and 70/40 12/20 and 70/80 36/20 and 70/40 12/60 and 70/40 60/20 and 70/40 84/20 and 70/40