Compare 90/80 and 81/60
1st number: 1 10/80, 2nd number: 1 21/60
90/80 is smaller than 81/60
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
90/80 = 90 × 3/80 × 3 = 270/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
81/60 = 81 × 4/60 × 4 = 324/240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 270/240 < 324/240 or 90/80 < 81/60
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