Answers

Add 21/20 and 6/28

1^st number: 1 1/20, 2^nd number: 6/28

21/20 + 6/28 is 177/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 28 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 20 × 7 = 140,
   21/20 = 21 × 7/20 × 7 = 147/140
3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
   6/28 = 6 × 5/28 × 5 = 30/140
4. Add the two like fractions:
   147/140 + 30/140 = 147 + 30/140 = 177/140
5. So, 21/20 + 6/28 = 177/140
   In mixed form: 137/140

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