Compare 70/9 and 25/21
1st number: 7 7/9, 2nd number: 1 4/21
70/9 is greater than 25/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
70/9 = 70 × 7/9 × 7 = 490/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
25/21 = 25 × 3/21 × 3 = 75/63 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 490/63 > 75/63 or 70/9 > 25/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9 and 50/21 70/18 and 25/21 70/9 and 25/42 70/9 and 75/21 70/27 and 25/21 70/9 and 25/63 70/45 and 25/21 70/63 and 25/21