Compare 21/2 and 30/84
1st number: 10 1/2, 2nd number: 30/84
21/2 is greater than 30/84
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 2 × 42 = 84,
21/2 = 21 × 42/2 × 42 = 882/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
30/84 = 30 × 1/84 × 1 = 30/84 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 882/84 > 30/84 or 21/2 > 30/84
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