Compare 3/21 and 9/10
321 is smaller than 910
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
321 = 3 × 1021 × 10 = 30210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
910 = 9 × 2110 × 21 = 189210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30210 < 189210 or 321 < 910
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