Answers

Add 54/28 and 18/90

1^st number: 1 26/28, 2^nd number: 18/90

54/28 + 18/90 is 149/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 90 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 28 × 45 = 1260,
   54/28 = 54 × 45/28 × 45 = 2430/1260
3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
   18/90 = 18 × 14/90 × 14 = 252/1260
4. Add the two like fractions:
   2430/1260 + 252/1260 = 2430 + 252/1260 = 2682/1260
5. 2682/1260 simplified gives 149/70
6. So, 54/28 + 18/90 = 149/70
   In mixed form: 29/70

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