Subtract 1/9 from 81/18
1st number: 4 9/18, 2nd number: 1/9
81/18 - 1/9 is 79/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 18 × 1 = 18,
81/18 = 81 × 1/18 × 1 = 81/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
1/9 = 1 × 2/9 × 2 = 2/18 - Subtract the two like fractions:
81/18 - 2/18 = 81 - 2/18 = 79/18 - In mixed form: 47/18
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