Answers

Add 63/80 and 49/45

1^st number: 63/80, 2^nd number: 1 4/45

63/80 + 49/45 is 1351/720.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 45 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 80 × 9 = 720,
   63/80 = 63 × 9/80 × 9 = 567/720
3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
   49/45 = 49 × 16/45 × 16 = 784/720
4. Add the two like fractions:
   567/720 + 784/720 = 567 + 784/720 = 1351/720
5. So, 63/80 + 49/45 = 1351/720
   In mixed form: 1631/720

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