Answers

Add 2/21 and 75/28

1^st number: 2/21, 2^nd number: 2 19/28

2/21 + 75/28 is 233/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 28 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 21 × 4 = 84,
   2/21 = 2 × 4/21 × 4 = 8/84
3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
   75/28 = 75 × 3/28 × 3 = 225/84
4. Add the two like fractions:
   8/84 + 225/84 = 8 + 225/84 = 233/84
5. So, 2/21 + 75/28 = 233/84
   In mixed form: 265/84

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