Subtract 3/98 from 1/70
1/70 - 3/98 is -4/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
1/70 = 1 × 7/70 × 7 = 7/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
3/98 = 3 × 5/98 × 5 = 15/490 - Subtract the two like fractions:
7/490 - 15/490 = 7 - 15/490 = -8/490 - After reducing the fraction, the answer is -4/245
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