Compare 21/5 and 21/72
1st number: 4 1/5, 2nd number: 21/72
21/5 is greater than 21/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
21/5 = 21 × 72/5 × 72 = 1512/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
21/72 = 21 × 5/72 × 5 = 105/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1512/360 > 105/360 or 21/5 > 21/72
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