Subtract 81/98 from 30/35
30/35 - 81/98 is 3/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 35 × 14 = 490,
30/35 = 30 × 14/35 × 14 = 420/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
81/98 = 81 × 5/98 × 5 = 405/490 - Subtract the two like fractions:
420/490 - 405/490 = 420 - 405/490 = 15/490 - After reducing the fraction, the answer is 3/98
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