Compare 20/45 and 3/72
20/45 is greater than 3/72
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,
20/45 = 20 × 8/45 × 8 = 160/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
3/72 = 3 × 5/72 × 5 = 15/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 160/360 > 15/360 or 20/45 > 3/72
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