Compare 5/45 and 20/18
1st number: 5/45, 2nd number: 1 2/18
5/45 is smaller than 20/18
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 45 × 2 = 90,
5/45 = 5 × 2/45 × 2 = 10/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 10/90 < 100/90 or 5/45 < 20/18
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