Answers

Add 75/20 and 50/42

1^st number: 3 15/20, 2^nd number: 1 8/42

75/20 + 50/42 is 415/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 42 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 20 × 21 = 420,
   75/20 = 75 × 21/20 × 21 = 1575/420
3. Likewise, for the 2nd fraction, since 42 × 10 = 420,
   50/42 = 50 × 10/42 × 10 = 500/420
4. Add the two like fractions:
   1575/420 + 500/420 = 1575 + 500/420 = 2075/420
5. 2075/420 simplified gives 415/84
6. So, 75/20 + 50/42 = 415/84
   In mixed form: 479/84

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