Subtract 7/81 from 16/18
16/18 - 7/81 is 65/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 18 × 9 = 162,
16/18 = 16 × 9/18 × 9 = 144/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
7/81 = 7 × 2/81 × 2 = 14/162 - Subtract the two like fractions:
144/162 - 14/162 = 144 - 14/162 = 130/162 - After reducing the fraction, the answer is 65/81
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