Compare 18/49 and 20/72
18/49 is greater than 20/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 72 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 49 × 72 = 3528,
18/49 = 18 × 72/49 × 72 = 1296/3528 - Likewise, for the 2nd fraction, since 72 × 49 = 3528,
20/72 = 20 × 49/72 × 49 = 980/3528 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1296/3528 > 980/3528 or 18/49 > 20/72
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