Compare 18/20 and 72/9
1st number: 18/20, 2nd number: 8 0/9
18/20 is smaller than 72/9
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 9 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
18/20 = 18 × 9/20 × 9 = 162/180 - Likewise, for the 2nd fraction, since 9 × 20 = 180,
72/9 = 72 × 20/9 × 20 = 1440/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 162/180 < 1440/180 or 18/20 < 72/9
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