Subtract 21/18 from 45/6
1st number: 7 3/6, 2nd number: 1 3/18
45/6 - 21/18 is 19/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 6 × 3 = 18,
45/6 = 45 × 3/6 × 3 = 135/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
21/18 = 21 × 1/18 × 1 = 21/18 - Subtract the two like fractions:
135/18 - 21/18 = 135 - 21/18 = 114/18 - After reducing the fraction, the answer is 19/3
- In mixed form: 61/3
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