Compare 42/10 and 75/15
1st number: 4 2/10, 2nd number: 5 0/15
42/10 is smaller than 75/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
42/10 = 42 × 3/10 × 3 = 126/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
75/15 = 75 × 2/15 × 2 = 150/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 126/30 < 150/30 or 42/10 < 75/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10 and 75/15 42/20 and 75/15 42/10 and 75/30 42/30 and 75/15 42/10 and 75/45 42/50 and 75/15 42/70 and 75/15