Compare 75/80 and 90/15
1st number: 75/80, 2nd number: 6 0/15
75/80 is smaller than 90/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
75/80 = 75 × 3/80 × 3 = 225/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
90/15 = 90 × 16/15 × 16 = 1440/240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 225/240 < 1440/240 or 75/80 < 90/15
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