Subtract 16/81 from 12/8
1st number: 1 4/8, 2nd number: 16/81
12/8 - 16/81 is 211/162.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
12/8 = 12 × 81/8 × 81 = 972/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
16/81 = 16 × 8/81 × 8 = 128/648 - Subtract the two like fractions:
972/648 - 128/648 = 972 - 128/648 = 844/648 - After reducing the fraction, the answer is 211/162
- In mixed form: 149/162
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