Answers

Add 75/42 and 70/90

1^st number: 1 33/42, 2^nd number: 70/90

75/42 + 70/90 is 323/126.

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,
   70/90 = 70 × 7/90 × 7 = 490/630
4. Add the two like fractions:
   1125/630 + 490/630 = 1125 + 490/630 = 1615/630
5. 1615/630 simplified gives 323/126
6. So, 75/42 + 70/90 = 323/126
   In mixed form: 271/126

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