Compare 70/81 and 90/96
70/81 is smaller than 90/96
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 96 is 2592
Next, find the equivalent fraction of both fractional numbers with denominator 2592 - For the 1st fraction, since 81 × 32 = 2592,
70/81 = 70 × 32/81 × 32 = 2240/2592 - Likewise, for the 2nd fraction, since 96 × 27 = 2592,
90/96 = 90 × 27/96 × 27 = 2430/2592 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2240/2592 < 2430/2592 or 70/81 < 90/96
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: