Answers

Add 30/32 and 81/40

1^st number: 30/32, 2^nd number: 2 1/40

30/32 + 81/40 is 237/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 32 and 40 is 160
   
   Next, find the equivalent fraction of both fractional numbers with denominator 160
2. For the 1st fraction, since 32 × 5 = 160,
   30/32 = 30 × 5/32 × 5 = 150/160
3. Likewise, for the 2nd fraction, since 40 × 4 = 160,
   81/40 = 81 × 4/40 × 4 = 324/160
4. Add the two like fractions:
   150/160 + 324/160 = 150 + 324/160 = 474/160
5. 474/160 simplified gives 237/80
6. So, 30/32 + 81/40 = 237/80
   In mixed form: 277/80

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