Answers

Add 54/90 and 63/4

1^st number: 54/90, 2^nd number: 15 3/4

54/90 + 63/4 is 327/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 4 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   54/90 = 54 × 2/90 × 2 = 108/180
3. Likewise, for the 2nd fraction, since 4 × 45 = 180,
   63/4 = 63 × 45/4 × 45 = 2835/180
4. Add the two like fractions:
   108/180 + 2835/180 = 108 + 2835/180 = 2943/180
5. 2943/180 simplified gives 327/20
6. So, 54/90 + 63/4 = 327/20
   In mixed form: 167/20

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