Answers

Add 81/30 and 40/16

1^st number: 2 21/30, 2^nd number: 2 8/16

81/30 + 40/16 is 26/5.

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,
   81/30 = 81 × 8/30 × 8 = 648/240
3. Likewise, for the 2nd fraction, since 16 × 15 = 240,
   40/16 = 40 × 15/16 × 15 = 600/240
4. Add the two like fractions:
   648/240 + 600/240 = 648 + 600/240 = 1248/240
5. 1248/240 simplified gives 26/5
6. So, 81/30 + 40/16 = 26/5
   In mixed form: 51/5

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