Subtract 27/49 from 5/70
5/70 - 27/49 is -47/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
5/70 = 5 × 7/70 × 7 = 35/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
27/49 = 27 × 10/49 × 10 = 270/490 - Subtract the two like fractions:
35/490 - 270/490 = 35 - 270/490 = -235/490 - After reducing the fraction, the answer is -47/98
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