Answers

Add 75/21 and 90/14

1^st number: 3 12/21, 2^nd number: 6 6/14

75/21 + 90/14 is 10/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 14 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 21 × 2 = 42,
   75/21 = 75 × 2/21 × 2 = 150/42
3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
   90/14 = 90 × 3/14 × 3 = 270/42
4. Add the two like fractions:
   150/42 + 270/42 = 150 + 270/42 = 420/42
5. 420/42 simplified gives 10/1
6. So, 75/21 + 90/14 = 10/1

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