Subtract 54/98 from 12/70
12/70 - 54/98 is -93/245.
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,
12/70 = 12 × 7/70 × 7 = 84/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
54/98 = 54 × 5/98 × 5 = 270/490 - Subtract the two like fractions:
84/490 - 270/490 = 84 - 270/490 = -186/490 - After reducing the fraction, the answer is -93/245
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