Subtract 18/70 from 2/54
2/54 - 18/70 is -208/945.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
2/54 = 2 × 35/54 × 35 = 70/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
18/70 = 18 × 27/70 × 27 = 486/1890 - Subtract the two like fractions:
70/1890 - 486/1890 = 70 - 486/1890 = -416/1890 - After reducing the fraction, the answer is -208/945
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