Compare 30/24 and 90/21
1st number: 1 6/24, 2nd number: 4 6/21
30/24 is smaller than 90/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 21 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
30/24 = 30 × 7/24 × 7 = 210/168 - Likewise, for the 2nd fraction, since 21 × 8 = 168,
90/21 = 90 × 8/21 × 8 = 720/168 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 210/168 < 720/168 or 30/24 < 90/21
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