Compare 81/16 and 21/10
1st number: 5 1/16, 2nd number: 2 1/10
81/16 is greater than 21/10
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 10 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
81/16 = 81 × 5/16 × 5 = 405/80 - Likewise, for the 2nd fraction, since 10 × 8 = 80,
21/10 = 21 × 8/10 × 8 = 168/80 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 405/80 > 168/80 or 81/16 > 21/10
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