Subtract 30/35 from 28/98
28/98 - 30/35 is -4/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 35 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
28/98 = 28 × 5/98 × 5 = 140/490 - Likewise, for the 2nd fraction, since 35 × 14 = 490,
30/35 = 30 × 14/35 × 14 = 420/490 - Subtract the two like fractions:
140/490 - 420/490 = 140 - 420/490 = -280/490 - After reducing the fraction, the answer is -4/7
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