Compare 75/42 and 90/12
1st number: 1 33/42, 2nd number: 7 6/12
75/42 is smaller than 90/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
75/42 = 75 × 2/42 × 2 = 150/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 150/84 < 630/84 or 75/42 < 90/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/84 and 90/12 75/42 and 90/24 75/42 and 90/36 75/42 and 90/60 75/42 and 90/84