Subtract 15/98 from 42/40
1st number: 1 2/40, 2nd number: 15/98
42/40 - 15/98 is 879/980.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 98 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
42/40 = 42 × 49/40 × 49 = 2058/1960 - Likewise, for the 2nd fraction, since 98 × 20 = 1960,
15/98 = 15 × 20/98 × 20 = 300/1960 - Subtract the two like fractions:
2058/1960 - 300/1960 = 2058 - 300/1960 = 1758/1960 - After reducing the fraction, the answer is 879/980
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