Subtract 30/81 from 4/98
4/98 - 30/81 is -436/1323.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 81 is 7938
Next, find the equivalent fraction of both fractional numbers with denominator 7938 - For the 1st fraction, since 98 × 81 = 7938,
4/98 = 4 × 81/98 × 81 = 324/7938 - Likewise, for the 2nd fraction, since 81 × 98 = 7938,
30/81 = 30 × 98/81 × 98 = 2940/7938 - Subtract the two like fractions:
324/7938 - 2940/7938 = 324 - 2940/7938 = -2616/7938 - After reducing the fraction, the answer is -436/1323
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