Subtract 21/98 from 7/35
7/35 - 21/98 is -1/70.
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,
7/35 = 7 × 14/35 × 14 = 98/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
21/98 = 21 × 5/98 × 5 = 105/490 - Subtract the two like fractions:
98/490 - 105/490 = 98 - 105/490 = -7/490 - After reducing the fraction, the answer is -1/70
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