Answers

Add 75/30 and 81/16

1^st number: 2 15/30, 2^nd number: 5 1/16

75/30 + 81/16 is 121/16.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 16 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 30 × 8 = 240,
   75/30 = 75 × 8/30 × 8 = 600/240
3. Likewise, for the 2nd fraction, since 16 × 15 = 240,
   81/16 = 81 × 15/16 × 15 = 1215/240
4. Add the two like fractions:
   600/240 + 1215/240 = 600 + 1215/240 = 1815/240
5. 1815/240 simplified gives 121/16
6. So, 75/30 + 81/16 = 121/16
   In mixed form: 79/16

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