Answers

Add 48/42 and 75/45

1^st number: 1 6/42, 2^nd number: 1 30/45

48/42 + 75/45 is 59/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   48/42 = 48 × 15/42 × 15 = 720/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   75/45 = 75 × 14/45 × 14 = 1050/630
4. Add the two like fractions:
   720/630 + 1050/630 = 720 + 1050/630 = 1770/630
5. 1770/630 simplified gives 59/21
6. So, 48/42 + 75/45 = 59/21
   In mixed form: 217/21

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