Compare 9/15 and 21/80
915 is greater than 2180
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
915 = 9 × 1615 × 16 = 144240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
2180 = 21 × 380 × 3 = 63240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 144240 > 63240 or 915 > 2180
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