Answers

Add 70/54 and 90/24

1^st number: 1 16/54, 2^nd number: 3 18/24

70/54 + 90/24 is 545/108.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 24 is 216
   
   Next, find the equivalent fraction of both fractional numbers with denominator 216
2. For the 1st fraction, since 54 × 4 = 216,
   70/54 = 70 × 4/54 × 4 = 280/216
3. Likewise, for the 2nd fraction, since 24 × 9 = 216,
   90/24 = 90 × 9/24 × 9 = 810/216
4. Add the two like fractions:
   280/216 + 810/216 = 280 + 810/216 = 1090/216
5. 1090/216 simplified gives 545/108
6. So, 70/54 + 90/24 = 545/108
   In mixed form: 55/108

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