Answers

Add 81/50 and 28/21

1^st number: 1 31/50, 2^nd number: 1 7/21

81/50 + 28/21 is 443/150.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 21 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 50 × 21 = 1050,
   81/50 = 81 × 21/50 × 21 = 1701/1050
3. Likewise, for the 2nd fraction, since 21 × 50 = 1050,
   28/21 = 28 × 50/21 × 50 = 1400/1050
4. Add the two like fractions:
   1701/1050 + 1400/1050 = 1701 + 1400/1050 = 3101/1050
5. 3101/1050 simplified gives 443/150
6. So, 81/50 + 28/21 = 443/150
   In mixed form: 2143/150

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