Answers

Add 27/21 and 7/15

1^st number: 1 6/21, 2^nd number: 7/15

27/21 + 7/15 is 184/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 15 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   27/21 = 27 × 5/21 × 5 = 135/105
3. Likewise, for the 2nd fraction, since 15 × 7 = 105,
   7/15 = 7 × 7/15 × 7 = 49/105
4. Add the two like fractions:
   135/105 + 49/105 = 135 + 49/105 = 184/105
5. So, 27/21 + 7/15 = 184/105
   In mixed form: 179/105

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