Compare 72/81 and 20/35
72/81 is greater than 20/35
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 35 is 2835
Next, find the equivalent fraction of both fractional numbers with denominator 2835 - For the 1st fraction, since 81 × 35 = 2835,
72/81 = 72 × 35/81 × 35 = 2520/2835 - Likewise, for the 2nd fraction, since 35 × 81 = 2835,
20/35 = 20 × 81/35 × 81 = 1620/2835 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2520/2835 > 1620/2835 or 72/81 > 20/35
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