Compare 7/70 and 1/21
7/70 is greater than 1/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
7/70 = 7 × 3/70 × 3 = 21/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
1/21 = 1 × 10/21 × 10 = 10/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 21/210 > 10/210 or 7/70 > 1/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70 and 1/21 7/70 and 2/21 7/70 and 1/42 21/70 and 1/21 7/70 and 3/21 7/70 and 1/63 35/70 and 1/21 7/70 and 5/21 49/70 and 1/21 7/70 and 7/21