Compare 9/40 and 12/63
9/40 is greater than 12/63
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
9/40 = 9 × 63/40 × 63 = 567/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
12/63 = 12 × 40/63 × 40 = 480/2520 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 567/2520 > 480/2520 or 9/40 > 12/63
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