Subtract 4/14 from 18/72
18/72 - 4/14 is -1/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 14 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
18/72 = 18 × 7/72 × 7 = 126/504 - Likewise, for the 2nd fraction, since 14 × 36 = 504,
4/14 = 4 × 36/14 × 36 = 144/504 - Subtract the two like fractions:
126/504 - 144/504 = 126 - 144/504 = -18/504 - After reducing the fraction, the answer is -1/28
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