Answers

Add 28/90 and 54/12

1^st number: 28/90, 2^nd number: 4 6/12

28/90 + 54/12 is 433/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 12 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   28/90 = 28 × 2/90 × 2 = 56/180
3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
   54/12 = 54 × 15/12 × 15 = 810/180
4. Add the two like fractions:
   56/180 + 810/180 = 56 + 810/180 = 866/180
5. 866/180 simplified gives 433/90
6. So, 28/90 + 54/12 = 433/90
   In mixed form: 473/90

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