Answers

Add 15/42 and 90/48

1^st number: 15/42, 2^nd number: 1 42/48

15/42 + 90/48 is 125/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 48 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 42 × 8 = 336,
   15/42 = 15 × 8/42 × 8 = 120/336
3. Likewise, for the 2nd fraction, since 48 × 7 = 336,
   90/48 = 90 × 7/48 × 7 = 630/336
4. Add the two like fractions:
   120/336 + 630/336 = 120 + 630/336 = 750/336
5. 750/336 simplified gives 125/56
6. So, 15/42 + 90/48 = 125/56
   In mixed form: 213/56

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