Answers

Add 84/90 and 54/12

1^st number: 84/90, 2^nd number: 4 6/12

84/90 + 54/12 is 163/30.

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,
   84/90 = 84 × 2/90 × 2 = 168/180
3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
   54/12 = 54 × 15/12 × 15 = 810/180
4. Add the two like fractions:
   168/180 + 810/180 = 168 + 810/180 = 978/180
5. 978/180 simplified gives 163/30
6. So, 84/90 + 54/12 = 163/30
   In mixed form: 513/30

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