Answers

Add 72/54 and 36/42

1^st number: 1 18/54, 2^nd number: 36/42

72/54 + 36/42 is 46/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 42 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   72/54 = 72 × 7/54 × 7 = 504/378
3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
   36/42 = 36 × 9/42 × 9 = 324/378
4. Add the two like fractions:
   504/378 + 324/378 = 504 + 324/378 = 828/378
5. 828/378 simplified gives 46/21
6. So, 72/54 + 36/42 = 46/21
   In mixed form: 24/21

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