Answers

Add 42/40 and 63/54

1^st number: 1 2/40, 2^nd number: 1 9/54

42/40 + 63/54 is 133/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 54 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 40 × 27 = 1080,
   42/40 = 42 × 27/40 × 27 = 1134/1080
3. Likewise, for the 2nd fraction, since 54 × 20 = 1080,
   63/54 = 63 × 20/54 × 20 = 1260/1080
4. Add the two like fractions:
   1134/1080 + 1260/1080 = 1134 + 1260/1080 = 2394/1080
5. 2394/1080 simplified gives 133/60
6. So, 42/40 + 63/54 = 133/60
   In mixed form: 213/60

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