Subtract 18/8 from 21/3
1st number: 7 0/3, 2nd number: 2 2/8
21/3 - 18/8 is 19/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 3 × 8 = 24,
21/3 = 21 × 8/3 × 8 = 168/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
18/8 = 18 × 3/8 × 3 = 54/24 - Subtract the two like fractions:
168/24 - 54/24 = 168 - 54/24 = 114/24 - After reducing the fraction, the answer is 19/4
- In mixed form: 43/4
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