Answers

Subtract 42/49 from 1/84

1/84 - 42/49 is -71/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 49 is 588
   
   Next, find the equivalent fraction of both fractional numbers with denominator 588
2. For the 1st fraction, since 84 × 7 = 588,
   1/84 = 1 × 7/84 × 7 = 7/588
3. Likewise, for the 2nd fraction, since 49 × 12 = 588,
   42/49 = 42 × 12/49 × 12 = 504/588
4. Subtract the two like fractions:
   7/588 - 504/588 = 7 - 504/588 = -497/588
5. After reducing the fraction, the answer is -71/84

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