Compare 15/80 and 5/7
15/80 is smaller than 5/7
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 7 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
15/80 = 15 × 7/80 × 7 = 105/560 - Likewise, for the 2nd fraction, since 7 × 80 = 560,
5/7 = 5 × 80/7 × 80 = 400/560 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 105/560 < 400/560 or 15/80 < 5/7
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