Compare 8/21 and 90/35
1st number: 8/21, 2nd number: 2 20/35
8/21 is smaller than 90/35
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
8/21 = 8 × 5/21 × 5 = 40/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
90/35 = 90 × 3/35 × 3 = 270/105 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 40/105 < 270/105 or 8/21 < 90/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/21 and 90/35 8/42 and 90/35 8/21 and 90/70 24/21 and 90/35 8/63 and 90/35 40/21 and 90/35 56/21 and 90/35