Compare 18/45 and 4/72
18/45 is greater than 4/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
18/45 = 18 × 8/45 × 8 = 144/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
4/72 = 4 × 5/72 × 5 = 20/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 144/360 > 20/360 or 18/45 > 4/72
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