Compare 15/10 and 42/40
1st number: 1 5/10, 2nd number: 1 2/40
15/10 is greater than 42/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
15/10 = 15 × 4/10 × 4 = 60/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 60/40 > 42/40 or 15/10 > 42/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/10 and 42/40 15/10 and 84/40 15/20 and 42/40 15/10 and 42/80 45/10 and 42/40 15/30 and 42/40 75/10 and 42/40 15/50 and 42/40 15/70 and 42/40