Subtract 20/70 from 10/54
10/54 - 20/70 is -19/189.
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,
10/54 = 10 × 35/54 × 35 = 350/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
20/70 = 20 × 27/70 × 27 = 540/1890 - Subtract the two like fractions:
350/1890 - 540/1890 = 350 - 540/1890 = -190/1890 - After reducing the fraction, the answer is -19/189
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