Compare 45/42 and 15/21
1st number: 1 3/42, 2nd number: 15/21
45/42 is greater than 15/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
45/42 = 45 × 1/42 × 1 = 45/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
15/21 = 15 × 2/21 × 2 = 30/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 45/42 > 30/42 or 45/42 > 15/21
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