Compare 21/5 and 20/36
1st number: 4 1/5, 2nd number: 20/36
21/5 is greater than 20/36
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 5 × 36 = 180,
21/5 = 21 × 36/5 × 36 = 756/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
20/36 = 20 × 5/36 × 5 = 100/180 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 756/180 > 100/180 or 21/5 > 20/36
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