Compare 5/10 and 45/81
5/10 is smaller than 45/81
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 10 × 81 = 810,
5/10 = 5 × 81/10 × 81 = 405/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
45/81 = 45 × 10/81 × 10 = 450/810 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 405/810 < 450/810 or 5/10 < 45/81
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