Compare 18/63 and 21/50
18/63 is smaller than 21/50
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 50 is 3150
Next, find the equivalent fraction of both fractional numbers with denominator 3150 - For the 1st fraction, since 63 × 50 = 3150,
18/63 = 18 × 50/63 × 50 = 900/3150 - Likewise, for the 2nd fraction, since 50 × 63 = 3150,
21/50 = 21 × 63/50 × 63 = 1323/3150 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 900/3150 < 1323/3150 or 18/63 < 21/50
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