Compare 21/6 and 90/5
1st number: 3 3/6, 2nd number: 18 0/5
21/6 is smaller than 90/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 5 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
21/6 = 21 × 5/6 × 5 = 105/30 - Likewise, for the 2nd fraction, since 5 × 6 = 30,
90/5 = 90 × 6/5 × 6 = 540/30 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 105/30 < 540/30 or 21/6 < 90/5
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