Answers

Add 72/15 and 6/42

1^st number: 4 12/15, 2^nd number: 6/42

72/15 + 6/42 is 173/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 15 × 14 = 210,
   72/15 = 72 × 14/15 × 14 = 1008/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   6/42 = 6 × 5/42 × 5 = 30/210
4. Add the two like fractions:
   1008/210 + 30/210 = 1008 + 30/210 = 1038/210
5. 1038/210 simplified gives 173/35
6. So, 72/15 + 6/42 = 173/35
   In mixed form: 433/35

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