Answers

Add 15/40 and 50/42

1^st number: 15/40, 2^nd number: 1 8/42

15/40 + 50/42 is 263/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 42 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   15/40 = 15 × 21/40 × 21 = 315/840
3. Likewise, for the 2nd fraction, since 42 × 20 = 840,
   50/42 = 50 × 20/42 × 20 = 1000/840
4. Add the two like fractions:
   315/840 + 1000/840 = 315 + 1000/840 = 1315/840
5. 1315/840 simplified gives 263/168
6. So, 15/40 + 50/42 = 263/168
   In mixed form: 195/168

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