Answers

Add 72/49 and 84/63

1^st number: 1 23/49, 2^nd number: 1 21/63

72/49 + 84/63 is 412/147.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 63 is 441
   
   Next, find the equivalent fraction of both fractional numbers with denominator 441
2. For the 1st fraction, since 49 × 9 = 441,
   72/49 = 72 × 9/49 × 9 = 648/441
3. Likewise, for the 2nd fraction, since 63 × 7 = 441,
   84/63 = 84 × 7/63 × 7 = 588/441
4. Add the two like fractions:
   648/441 + 588/441 = 648 + 588/441 = 1236/441
5. 1236/441 simplified gives 412/147
6. So, 72/49 + 84/63 = 412/147
   In mixed form: 2118/147

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