Answers

Add 72/42 and 60/16

1^st number: 1 30/42, 2^nd number: 3 12/16

72/42 + 60/16 is 153/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 16 is 336
   
   Next, find the equivalent fraction of both fractional numbers with denominator 336
2. For the 1st fraction, since 42 × 8 = 336,
   72/42 = 72 × 8/42 × 8 = 576/336
3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
   60/16 = 60 × 21/16 × 21 = 1260/336
4. Add the two like fractions:
   576/336 + 1260/336 = 576 + 1260/336 = 1836/336
5. 1836/336 simplified gives 153/28
6. So, 72/42 + 60/16 = 153/28
   In mixed form: 513/28

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