Subtract 20/35 from 9/54
9/54 - 20/35 is -17/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 35 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
9/54 = 9 × 35/54 × 35 = 315/1890 - Likewise, for the 2nd fraction, since 35 × 54 = 1890,
20/35 = 20 × 54/35 × 54 = 1080/1890 - Subtract the two like fractions:
315/1890 - 1080/1890 = 315 - 1080/1890 = -765/1890 - After reducing the fraction, the answer is -17/42
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