Compare 90/15 and 21/9
1st number: 6 0/15, 2nd number: 2 3/9
90/15 is greater than 21/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
90/15 = 90 × 3/15 × 3 = 270/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
21/9 = 21 × 5/9 × 5 = 105/45 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 270/45 > 105/45 or 90/15 > 21/9
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