Compare 84/36 and 42/20
1st number: 2 12/36, 2nd number: 2 2/20
84/36 is greater than 42/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
84/36 = 84 × 5/36 × 5 = 420/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
42/20 = 42 × 9/20 × 9 = 378/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 420/180 > 378/180 or 84/36 > 42/20
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