Answers

Subtract 21/10 from 84/5

1^st number: 16 4/5, 2^nd number: 2 1/10

84/5 - 21/10 is 147/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 10 is 10
   
   Next, find the equivalent fraction of both fractional numbers with denominator 10
2. For the 1st fraction, since 5 × 2 = 10,
   84/5 = 84 × 2/5 × 2 = 168/10
3. Likewise, for the 2nd fraction, since 10 × 1 = 10,
   21/10 = 21 × 1/10 × 1 = 21/10
4. Subtract the two like fractions:
   168/10 - 21/10 = 168 - 21/10 = 147/10
5. In mixed form: 147/10

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