Compare 45/42 and 7/20
1st number: 1 3/42, 2nd number: 7/20
45/42 is greater than 7/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
45/42 = 45 × 10/42 × 10 = 450/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
7/20 = 7 × 21/20 × 21 = 147/420 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 450/420 > 147/420 or 45/42 > 7/20
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