Subtract 7/8 from 21/6
1st number: 3 3/6, 2nd number: 7/8
21/6 - 7/8 is 21/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 6 × 4 = 24,
21/6 = 21 × 4/6 × 4 = 84/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
7/8 = 7 × 3/8 × 3 = 21/24 - Subtract the two like fractions:
84/24 - 21/24 = 84 - 21/24 = 63/24 - After reducing the fraction, the answer is 21/8
- In mixed form: 25/8
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