Compare 12/20 and 48/45
1st number: 12/20, 2nd number: 1 3/45
12/20 is smaller than 48/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
12/20 = 12 × 9/20 × 9 = 108/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
48/45 = 48 × 4/45 × 4 = 192/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 108/180 < 192/180 or 12/20 < 48/45
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 48/45 12/20 and 96/45 12/40 and 48/45 12/20 and 48/90 36/20 and 48/45 12/60 and 48/45 60/20 and 48/45 84/20 and 48/45