Compare 15/45 and 4/18
15/45 is greater than 4/18
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,
15/45 = 15 × 2/45 × 2 = 30/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
4/18 = 4 × 5/18 × 5 = 20/90 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/90 > 20/90 or 15/45 > 4/18
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