Subtract 15/81 from 35/40
35/40 - 15/81 is 149/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 81 is 3240
Next, find the equivalent fraction of both fractional numbers with denominator 3240 - For the 1st fraction, since 40 × 81 = 3240,
35/40 = 35 × 81/40 × 81 = 2835/3240 - Likewise, for the 2nd fraction, since 81 × 40 = 3240,
15/81 = 15 × 40/81 × 40 = 600/3240 - Subtract the two like fractions:
2835/3240 - 600/3240 = 2835 - 600/3240 = 2235/3240 - After reducing the fraction, the answer is 149/216
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