Compare 21/10 and 7/21
1st number: 2 1/10, 2nd number: 7/21
2110 is greater than 721
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
2110 = 21 × 2110 × 21 = 441210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
721 = 7 × 1021 × 10 = 70210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 441210 > 70210 or 2110 > 721
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