Answers

Add 90/18 and 54/56

1^st number: 5 0/18, 2^nd number: 54/56

90/18 + 54/56 is 167/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 18 × 28 = 504,
   90/18 = 90 × 28/18 × 28 = 2520/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   54/56 = 54 × 9/56 × 9 = 486/504
4. Add the two like fractions:
   2520/504 + 486/504 = 2520 + 486/504 = 3006/504
5. 3006/504 simplified gives 167/28
6. So, 90/18 + 54/56 = 167/28
   In mixed form: 527/28

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