Subtract 81/21 from 63/6
1st number: 10 3/6, 2nd number: 3 18/21
63/6 - 81/21 is 93/14.
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,
63/6 = 63 × 7/6 × 7 = 441/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
81/21 = 81 × 2/21 × 2 = 162/42 - Subtract the two like fractions:
441/42 - 162/42 = 441 - 162/42 = 279/42 - After reducing the fraction, the answer is 93/14
- In mixed form: 69/14
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