Answers

Add 28/30 and 90/42

1^st number: 28/30, 2^nd number: 2 6/42

28/30 + 90/42 is 323/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 30 × 7 = 210,
   28/30 = 28 × 7/30 × 7 = 196/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   90/42 = 90 × 5/42 × 5 = 450/210
4. Add the two like fractions:
   196/210 + 450/210 = 196 + 450/210 = 646/210
5. 646/210 simplified gives 323/105
6. So, 28/30 + 90/42 = 323/105
   In mixed form: 38/105

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