Answers

Subtract 21/7 from 5/84

1^st number: 5/84, 2^nd number: 3 0/7

5/84 - 21/7 is -247/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 7 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   5/84 = 5 × 1/84 × 1 = 5/84
3. Likewise, for the 2nd fraction, since 7 × 12 = 84,
   21/7 = 21 × 12/7 × 12 = 252/84
4. Subtract the two like fractions:
   5/84 - 252/84 = 5 - 252/84 = -247/84

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