Compare 75/90 and 56/80
75/90 is greater than 56/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
75/90 = 75 × 8/90 × 8 = 600/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
56/80 = 56 × 9/80 × 9 = 504/720 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 600/720 > 504/720 or 75/90 > 56/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: