Answers

Subtract 40/21 from 84/5

1^st number: 16 4/5, 2^nd number: 1 19/21

84/5 - 40/21 is 1564/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 21 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 5 × 21 = 105,
   84/5 = 84 × 21/5 × 21 = 1764/105
3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
   40/21 = 40 × 5/21 × 5 = 200/105
4. Subtract the two like fractions:
   1764/105 - 200/105 = 1764 - 200/105 = 1564/105
5. In mixed form: 1494/105

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