Subtract 81/21 from 16/6
1st number: 2 4/6, 2nd number: 3 18/21
16/6 - 81/21 is -25/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
16/6 = 16 × 7/6 × 7 = 112/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
81/21 = 81 × 2/21 × 2 = 162/42 - Subtract the two like fractions:
112/42 - 162/42 = 112 - 162/42 = -50/42 - After reducing the fraction, the answer is -25/21
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