Compare 90/45 and 12/7
1st number: 2 0/45, 2nd number: 1 5/7
90/45 is greater than 12/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 7 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 45 × 7 = 315,
90/45 = 90 × 7/45 × 7 = 630/315 - Likewise, for the 2nd fraction, since 7 × 45 = 315,
12/7 = 12 × 45/7 × 45 = 540/315 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 630/315 > 540/315 or 90/45 > 12/7
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 24/7 90/45 and 12/14 90/45 and 36/7 90/45 and 12/21 90/45 and 60/7 90/45 and 12/35 90/45 and 84/7 90/45 and 12/49