Compare 45/20 and 12/16
1st number: 2 5/20, 2nd number: 12/16
45/20 is greater than 12/16
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
45/20 = 45 × 4/20 × 4 = 180/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
12/16 = 12 × 5/16 × 5 = 60/80 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 180/80 > 60/80 or 45/20 > 12/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20 and 12/16 45/20 and 24/16 45/40 and 12/16 45/20 and 12/32 45/20 and 36/16 45/60 and 12/16 45/20 and 12/48 45/20 and 60/16 45/20 and 12/80 45/20 and 84/16