Subtract 15/70 from 4/98
4/98 - 15/70 is -17/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
4/98 = 4 × 5/98 × 5 = 20/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
15/70 = 15 × 7/70 × 7 = 105/490 - Subtract the two like fractions:
20/490 - 105/490 = 20 - 105/490 = -85/490 - After reducing the fraction, the answer is -17/98
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