Subtract 42/70 from 15/98
15/98 - 42/70 is -219/490.
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,
15/98 = 15 × 5/98 × 5 = 75/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
42/70 = 42 × 7/70 × 7 = 294/490 - Subtract the two like fractions:
75/490 - 294/490 = 75 - 294/490 = -219/490
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