Compare 40/16 and 45/20
1st number: 2 8/16, 2nd number: 2 5/20
40/16 is greater than 45/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
40/16 = 40 × 5/16 × 5 = 200/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
45/20 = 45 × 4/20 × 4 = 180/80 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 200/80 > 180/80 or 40/16 > 45/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/16 and 45/20 40/16 and 90/20 40/32 and 45/20 40/16 and 45/40 40/48 and 45/20 40/16 and 45/60 40/80 and 45/20