Compare 10/15 and 90/81
1st number: 10/15, 2nd number: 1 9/81
10/15 is smaller than 90/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 81 is 405
Next, find the equivalent fraction of both fractional numbers with denominator 405 - For the 1st fraction, since 15 × 27 = 405,
10/15 = 10 × 27/15 × 27 = 270/405 - Likewise, for the 2nd fraction, since 81 × 5 = 405,
90/81 = 90 × 5/81 × 5 = 450/405 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 270/405 < 450/405 or 10/15 < 90/81
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