Answers

Add 30/50 and 81/40

1^st number: 30/50, 2^nd number: 2 1/40

30/50 + 81/40 is 21/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 40 is 200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 200
2. For the 1st fraction, since 50 × 4 = 200,
   30/50 = 30 × 4/50 × 4 = 120/200
3. Likewise, for the 2nd fraction, since 40 × 5 = 200,
   81/40 = 81 × 5/40 × 5 = 405/200
4. Add the two like fractions:
   120/200 + 405/200 = 120 + 405/200 = 525/200
5. 525/200 simplified gives 21/8
6. So, 30/50 + 81/40 = 21/8
   In mixed form: 25/8

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