Answers

Subtract 3/28 from 1/84

1/84 - 3/28 is -2/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 28 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   1/84 = 1 × 1/84 × 1 = 1/84
3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
   3/28 = 3 × 3/28 × 3 = 9/84
4. Subtract the two like fractions:
   1/84 - 9/84 = 1 - 9/84 = -8/84
5. After reducing the fraction, the answer is -2/21

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