Answers

Add 28/42 and 48/20

1^st number: 28/42, 2^nd number: 2 8/20

28/42 + 48/20 is 46/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 20 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 42 × 10 = 420,
   28/42 = 28 × 10/42 × 10 = 280/420
3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
   48/20 = 48 × 21/20 × 21 = 1008/420
4. Add the two like fractions:
   280/420 + 1008/420 = 280 + 1008/420 = 1288/420
5. 1288/420 simplified gives 46/15
6. So, 28/42 + 48/20 = 46/15
   In mixed form: 31/15

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