Subtract 40/42 from 2/16
2/16 - 40/42 is -139/168.
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,
2/16 = 2 × 21/16 × 21 = 42/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
40/42 = 40 × 8/42 × 8 = 320/336 - Subtract the two like fractions:
42/336 - 320/336 = 42 - 320/336 = -278/336 - After reducing the fraction, the answer is -139/168
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