Compare 45/63 and 12/20
45/63 is greater than 12/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
45/63 = 45 × 20/63 × 20 = 900/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
12/20 = 12 × 63/20 × 63 = 756/1260 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 900/1260 > 756/1260 or 45/63 > 12/20
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