Subtract 21/6 from 6/8
1st number: 6/8, 2nd number: 3 3/6
6/8 - 21/6 is -11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 6 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
6/8 = 6 × 3/8 × 3 = 18/24 - Likewise, for the 2nd fraction, since 6 × 4 = 24,
21/6 = 21 × 4/6 × 4 = 84/24 - Subtract the two like fractions:
18/24 - 84/24 = 18 - 84/24 = -66/24 - After reducing the fraction, the answer is -11/4
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