Compare 42/8 and 40/20
1st number: 5 2/8, 2nd number: 2 0/20
42/8 is greater than 40/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 20 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
42/8 = 42 × 5/8 × 5 = 210/40 - Likewise, for the 2nd fraction, since 20 × 2 = 40,
40/20 = 40 × 2/20 × 2 = 80/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/40 > 80/40 or 42/8 > 40/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8 and 40/20 42/8 and 80/20 42/16 and 40/20 42/24 and 40/20 42/8 and 40/60 42/40 and 40/20 42/56 and 40/20