Compare 18/70 and 42/75
18/70 is smaller than 42/75
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 70 × 15 = 1050,
18/70 = 18 × 15/70 × 15 = 270/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
42/75 = 42 × 14/75 × 14 = 588/1050 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 270/1050 < 588/1050 or 18/70 < 42/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70 and 42/75 18/70 and 84/75 54/70 and 42/75 90/70 and 42/75