Answers

Add 96/42 and 15/80

1^st number: 2 12/42, 2^nd number: 15/80

96/42 + 15/80 is 277/112.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 80 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 42 × 40 = 1680,
   96/42 = 96 × 40/42 × 40 = 3840/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   15/80 = 15 × 21/80 × 21 = 315/1680
4. Add the two like fractions:
   3840/1680 + 315/1680 = 3840 + 315/1680 = 4155/1680
5. 4155/1680 simplified gives 277/112
6. So, 96/42 + 15/80 = 277/112
   In mixed form: 253/112

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