Subtract 81/9 from 4/2
1st number: 2 0/2, 2nd number: 9 0/9
4/2 - 81/9 is -7/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 9 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
4/2 = 4 × 9/2 × 9 = 36/18 - Likewise, for the 2nd fraction, since 9 × 2 = 18,
81/9 = 81 × 2/9 × 2 = 162/18 - Subtract the two like fractions:
36/18 - 162/18 = 36 - 162/18 = -126/18 - After reducing the fraction, the answer is -7/1
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