Compare 30/50 and 18/72
30/50 is greater than 18/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 72 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 50 × 36 = 1800,
30/50 = 30 × 36/50 × 36 = 1080/1800 - Likewise, for the 2nd fraction, since 72 × 25 = 1800,
18/72 = 18 × 25/72 × 25 = 450/1800 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1080/1800 > 450/1800 or 30/50 > 18/72
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