Answers

Add 54/5 and 63/40

1^st number: 10 4/5, 2^nd number: 1 23/40

54/5 + 63/40 is 99/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 40 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 5 × 8 = 40,
   54/5 = 54 × 8/5 × 8 = 432/40
3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
   63/40 = 63 × 1/40 × 1 = 63/40
4. Add the two like fractions:
   432/40 + 63/40 = 432 + 63/40 = 495/40
5. 495/40 simplified gives 99/8
6. So, 54/5 + 63/40 = 99/8
   In mixed form: 123/8

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