Compare 90/45 and 4/18
1st number: 2 0/45, 2nd number: 4/18
90/45 is greater than 4/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
90/45 = 90 × 2/45 × 2 = 180/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
4/18 = 4 × 5/18 × 5 = 20/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 180/90 > 20/90 or 90/45 > 4/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45 and 8/18 90/45 and 4/36 90/45 and 12/18 90/45 and 4/54 90/45 and 20/18 90/45 and 4/90 90/45 and 28/18