Compare 3/80 and 18/75
3/80 is smaller than 18/75
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 75 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 80 × 15 = 1200,
3/80 = 3 × 15/80 × 15 = 45/1200 - Likewise, for the 2nd fraction, since 75 × 16 = 1200,
18/75 = 18 × 16/75 × 16 = 288/1200 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 45/1200 < 288/1200 or 3/80 < 18/75
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