Compare 21/6 and 28/21
1st number: 3 3/6, 2nd number: 1 7/21
21/6 is greater than 28/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
21/6 = 21 × 7/6 × 7 = 147/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
28/21 = 28 × 2/21 × 2 = 56/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/42 > 56/42 or 21/6 > 28/21
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