Answers

Add 54/21 and 21/49

1^st number: 2 12/21, 2^nd number: 21/49

54/21 + 21/49 is 3/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 49 is 147
   
   Next, find the equivalent fraction of both fractional numbers with denominator 147
2. For the 1st fraction, since 21 × 7 = 147,
   54/21 = 54 × 7/21 × 7 = 378/147
3. Likewise, for the 2nd fraction, since 49 × 3 = 147,
   21/49 = 21 × 3/49 × 3 = 63/147
4. Add the two like fractions:
   378/147 + 63/147 = 378 + 63/147 = 441/147
5. 441/147 simplified gives 3/1
6. So, 54/21 + 21/49 = 3/1

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