Subtract 8/42 from 8/16
8/16 - 8/42 is 13/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
8/16 = 8 × 21/16 × 21 = 168/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
8/42 = 8 × 8/42 × 8 = 64/336 - Subtract the two like fractions:
168/336 - 64/336 = 168 - 64/336 = 104/336 - After reducing the fraction, the answer is 13/42
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