Answers

Add 54/25 and 28/90

1^st number: 2 4/25, 2^nd number: 28/90

54/25 + 28/90 is 556/225.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 25 × 18 = 450,
   54/25 = 54 × 18/25 × 18 = 972/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   28/90 = 28 × 5/90 × 5 = 140/450
4. Add the two like fractions:
   972/450 + 140/450 = 972 + 140/450 = 1112/450
5. 1112/450 simplified gives 556/225
6. So, 54/25 + 28/90 = 556/225
   In mixed form: 2106/225

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