Compare 30/20 and 84/18
1st number: 1 10/20, 2nd number: 4 12/18
30/20 is smaller than 84/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
30/20 = 30 × 9/20 × 9 = 270/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
84/18 = 84 × 10/18 × 10 = 840/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 270/180 < 840/180 or 30/20 < 84/18
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