Subtract 30/64 from 35/81
35/81 - 30/64 is -95/2592.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 64 is 5184
Next, find the equivalent fraction of both fractional numbers with denominator 5184 - For the 1st fraction, since 81 × 64 = 5184,
35/81 = 35 × 64/81 × 64 = 2240/5184 - Likewise, for the 2nd fraction, since 64 × 81 = 5184,
30/64 = 30 × 81/64 × 81 = 2430/5184 - Subtract the two like fractions:
2240/5184 - 2430/5184 = 2240 - 2430/5184 = -190/5184 - After reducing the fraction, the answer is -95/2592
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