Subtract 10/8 from 4/81
1st number: 4/81, 2nd number: 1 2/8
4/81 - 10/8 is -389/324.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
4/81 = 4 × 8/81 × 8 = 32/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
10/8 = 10 × 81/8 × 81 = 810/648 - Subtract the two like fractions:
32/648 - 810/648 = 32 - 810/648 = -778/648 - After reducing the fraction, the answer is -389/324
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