Compare 21/2 and 84/12
1st number: 10 1/2, 2nd number: 7 0/12
21/2 is greater than 84/12
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 2 × 6 = 12,
21/2 = 21 × 6/2 × 6 = 126/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
84/12 = 84 × 1/12 × 1 = 84/12 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 126/12 > 84/12 or 21/2 > 84/12
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