Answers

Add 72/12 and 54/90

1^st number: 6 0/12, 2^nd number: 54/90

72/12 + 54/90 is 33/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 12 × 15 = 180,
   72/12 = 72 × 15/12 × 15 = 1080/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   54/90 = 54 × 2/90 × 2 = 108/180
4. Add the two like fractions:
   1080/180 + 108/180 = 1080 + 108/180 = 1188/180
5. 1188/180 simplified gives 33/5
6. So, 72/12 + 54/90 = 33/5
   In mixed form: 63/5

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