Subtract 21/54 from 10/35
10/35 - 21/54 is -13/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 35 × 54 = 1890,
10/35 = 10 × 54/35 × 54 = 540/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
21/54 = 21 × 35/54 × 35 = 735/1890 - Subtract the two like fractions:
540/1890 - 735/1890 = 540 - 735/1890 = -195/1890 - After reducing the fraction, the answer is -13/126
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