Answers

Add 72/42 and 54/72

1^st number: 1 30/42, 2^nd number: 54/72

72/42 + 54/72 is 69/28.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 42 × 12 = 504,
   72/42 = 72 × 12/42 × 12 = 864/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   54/72 = 54 × 7/72 × 7 = 378/504
4. Add the two like fractions:
   864/504 + 378/504 = 864 + 378/504 = 1242/504
5. 1242/504 simplified gives 69/28
6. So, 72/42 + 54/72 = 69/28
   In mixed form: 213/28

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