Compare 6/9 and 4/21
69 is greater than 421
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,
69 = 6 × 79 × 7 = 4263 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
421 = 4 × 321 × 3 = 1263 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 4263 > 1263 or 69 > 421
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