Compare 15/45 and 56/80
15/45 is smaller than 56/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
15/45 = 15 × 16/45 × 16 = 240/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
56/80 = 56 × 9/80 × 9 = 504/720 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 240/720 < 504/720 or 15/45 < 56/80
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