Compare 84/9 and 21/5
1st number: 9 3/9, 2nd number: 4 1/5
84/9 is greater than 21/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
84/9 = 84 × 5/9 × 5 = 420/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
21/5 = 21 × 9/5 × 9 = 189/45 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 420/45 > 189/45 or 84/9 > 21/5
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