Compare 30/81 and 18/4
1st number: 30/81, 2nd number: 4 2/4
30/81 is smaller than 18/4
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 4 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
30/81 = 30 × 4/81 × 4 = 120/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
18/4 = 18 × 81/4 × 81 = 1458/324 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 120/324 < 1458/324 or 30/81 < 18/4
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