Subtract 21/35 from 7/27
7/27 - 21/35 is -46/135.
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,
7/27 = 7 × 35/27 × 35 = 245/945 - Likewise, for the 2nd fraction, since 35 × 27 = 945,
21/35 = 21 × 27/35 × 27 = 567/945 - Subtract the two like fractions:
245/945 - 567/945 = 245 - 567/945 = -322/945 - After reducing the fraction, the answer is -46/135
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