Answers

Add 30/72 and 80/42

1^st number: 30/72, 2^nd number: 1 38/42

30/72 + 80/42 is 65/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 42 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   30/72 = 30 × 7/72 × 7 = 210/504
3. Likewise, for the 2nd fraction, since 42 × 12 = 504,
   80/42 = 80 × 12/42 × 12 = 960/504
4. Add the two like fractions:
   210/504 + 960/504 = 210 + 960/504 = 1170/504
5. 1170/504 simplified gives 65/28
6. So, 30/72 + 80/42 = 65/28
   In mixed form: 29/28

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