Subtract 20/35 from 3/27
3/27 - 20/35 is -29/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 35 is 945
Next, find the equivalent fraction of both fractional numbers with denominator 945 - For the 1st fraction, since 27 × 35 = 945,
3/27 = 3 × 35/27 × 35 = 105/945 - Likewise, for the 2nd fraction, since 35 × 27 = 945,
20/35 = 20 × 27/35 × 27 = 540/945 - Subtract the two like fractions:
105/945 - 540/945 = 105 - 540/945 = -435/945 - After reducing the fraction, the answer is -29/63
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