Compare 18/72 and 18/25
18/72 is smaller than 18/25
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 25 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
18/72 = 18 × 25/72 × 25 = 450/1800 - Likewise, for the 2nd fraction, since 25 × 72 = 1800,
18/25 = 18 × 72/25 × 72 = 1296/1800 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 450/1800 < 1296/1800 or 18/72 < 18/25
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