Subtract 27/54 from 25/70
25/70 - 27/54 is -1/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
25/70 = 25 × 27/70 × 27 = 675/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
27/54 = 27 × 35/54 × 35 = 945/1890 - Subtract the two like fractions:
675/1890 - 945/1890 = 675 - 945/1890 = -270/1890 - After reducing the fraction, the answer is -1/7
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