Compare 21/18 and 8/42
1st number: 1 3/18, 2nd number: 8/42
21/18 is greater than 8/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
21/18 = 21 × 7/18 × 7 = 147/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
8/42 = 8 × 3/42 × 3 = 24/126 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 147/126 > 24/126 or 21/18 > 8/42
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