Answers

Add 42/28 and 90/42

1^st number: 1 14/28, 2^nd number: 2 6/42

42/28 + 90/42 is 51/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 42 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 28 × 3 = 84,
   42/28 = 42 × 3/28 × 3 = 126/84
3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
   90/42 = 90 × 2/42 × 2 = 180/84
4. Add the two like fractions:
   126/84 + 180/84 = 126 + 180/84 = 306/84
5. 306/84 simplified gives 51/14
6. So, 42/28 + 90/42 = 51/14
   In mixed form: 39/14

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