Subtract 90/8 from 21/6
1st number: 3 3/6, 2nd number: 11 2/8
21/6 - 90/8 is -31/4.
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,
90/8 = 90 × 3/8 × 3 = 270/24 - Subtract the two like fractions:
84/24 - 270/24 = 84 - 270/24 = -186/24 - After reducing the fraction, the answer is -31/4
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