Compare 20/56 and 12/45
20/56 is greater than 12/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
20/56 = 20 × 45/56 × 45 = 900/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
12/45 = 12 × 56/45 × 56 = 672/2520 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 900/2520 > 672/2520 or 20/56 > 12/45
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