Answers

Add 54/63 and 90/24

1^st number: 54/63, 2^nd number: 3 18/24

54/63 + 90/24 is 129/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 24 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   54/63 = 54 × 8/63 × 8 = 432/504
3. Likewise, for the 2nd fraction, since 24 × 21 = 504,
   90/24 = 90 × 21/24 × 21 = 1890/504
4. Add the two like fractions:
   432/504 + 1890/504 = 432 + 1890/504 = 2322/504
5. 2322/504 simplified gives 129/28
6. So, 54/63 + 90/24 = 129/28
   In mixed form: 417/28

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