Answers

Add 75/42 and 15/90

1^st number: 1 33/42, 2^nd number: 15/90

75/42 + 15/90 is 41/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   75/42 = 75 × 15/42 × 15 = 1125/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   15/90 = 15 × 7/90 × 7 = 105/630
4. Add the two like fractions:
   1125/630 + 105/630 = 1125 + 105/630 = 1230/630
5. 1230/630 simplified gives 41/21
6. So, 75/42 + 15/90 = 41/21
   In mixed form: 120/21

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