Subtract 21/18 from 84/2
1st number: 42 0/2, 2nd number: 1 3/18
84/2 - 21/18 is 245/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
84/2 = 84 × 9/2 × 9 = 756/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Subtract the two like fractions:
756/18 - 21/18 = 756 - 21/18 = 735/18 - After reducing the fraction, the answer is 245/6
- In mixed form: 405/6
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