Compare 75/63 and 90/12
1st number: 1 12/63, 2nd number: 7 6/12
75/63 is smaller than 90/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
75/63 = 75 × 4/63 × 4 = 300/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
90/12 = 90 × 21/12 × 21 = 1890/252 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 300/252 < 1890/252 or 75/63 < 90/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/63 and 90/24 75/63 and 90/36 75/63 and 90/60 75/63 and 90/84