Answers

Add 6/15 and 25/21

1^st number: 6/15, 2^nd number: 1 4/21

6/15 + 25/21 is 167/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 21 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 15 × 7 = 105,
   6/15 = 6 × 7/15 × 7 = 42/105
3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
   25/21 = 25 × 5/21 × 5 = 125/105
4. Add the two like fractions:
   42/105 + 125/105 = 42 + 125/105 = 167/105
5. So, 6/15 + 25/21 = 167/105
   In mixed form: 162/105

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