Answers

Add 81/45 and 21/49

1^st number: 1 36/45, 2^nd number: 21/49

81/45 + 21/49 is 78/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 49 is 2205
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2205
2. For the 1st fraction, since 45 × 49 = 2205,
   81/45 = 81 × 49/45 × 49 = 3969/2205
3. Likewise, for the 2nd fraction, since 49 × 45 = 2205,
   21/49 = 21 × 45/49 × 45 = 945/2205
4. Add the two like fractions:
   3969/2205 + 945/2205 = 3969 + 945/2205 = 4914/2205
5. 4914/2205 simplified gives 78/35
6. So, 81/45 + 21/49 = 78/35
   In mixed form: 28/35

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