Compare 45/80 and 20/54
45/80 is greater than 20/54
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 54 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
45/80 = 45 × 27/80 × 27 = 1215/2160 - Likewise, for the 2nd fraction, since 54 × 40 = 2160,
20/54 = 20 × 40/54 × 40 = 800/2160 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1215/2160 > 800/2160 or 45/80 > 20/54
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