Subtract 35/70 from 15/54
15/54 - 35/70 is -2/9.
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,
15/54 = 15 × 35/54 × 35 = 525/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
35/70 = 35 × 27/70 × 27 = 945/1890 - Subtract the two like fractions:
525/1890 - 945/1890 = 525 - 945/1890 = -420/1890 - After reducing the fraction, the answer is -2/9
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