Subtract 28/14 from 7/81
1st number: 7/81, 2nd number: 2 0/14
7/81 - 28/14 is -155/81.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 14 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 81 × 14 = 1134,
7/81 = 7 × 14/81 × 14 = 98/1134 - Likewise, for the 2nd fraction, since 14 × 81 = 1134,
28/14 = 28 × 81/14 × 81 = 2268/1134 - Subtract the two like fractions:
98/1134 - 2268/1134 = 98 - 2268/1134 = -2170/1134 - After reducing the fraction, the answer is -155/81
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