Subtract 3/98 from 42/80
42/80 - 3/98 is 969/1960.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 98 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 80 × 49 = 3920,
42/80 = 42 × 49/80 × 49 = 2058/3920 - Likewise, for the 2nd fraction, since 98 × 40 = 3920,
3/98 = 3 × 40/98 × 40 = 120/3920 - Subtract the two like fractions:
2058/3920 - 120/3920 = 2058 - 120/3920 = 1938/3920 - After reducing the fraction, the answer is 969/1960
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