Answers

Add 49/21 and 63/45

1^st number: 2 7/21, 2^nd number: 1 18/45

49/21 + 63/45 is 56/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 21 × 15 = 315,
   49/21 = 49 × 15/21 × 15 = 735/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   63/45 = 63 × 7/45 × 7 = 441/315
4. Add the two like fractions:
   735/315 + 441/315 = 735 + 441/315 = 1176/315
5. 1176/315 simplified gives 56/15
6. So, 49/21 + 63/45 = 56/15
   In mixed form: 311/15

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