Compare 9/63 and 21/40
9/63 is smaller than 21/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
9/63 = 9 × 40/63 × 40 = 360/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
21/40 = 21 × 63/40 × 63 = 1323/2520 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 360/2520 < 1323/2520 or 9/63 < 21/40
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