Answers

Subtract 5/21 from 12/5

1^st number: 2 2/5, 2^nd number: 5/21

12/5 - 5/21 is 227/105.

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,
   12/5 = 12 × 21/5 × 21 = 252/105
3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
   5/21 = 5 × 5/21 × 5 = 25/105
4. Subtract the two like fractions:
   252/105 - 25/105 = 252 - 25/105 = 227/105
5. In mixed form: 217/105

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