Answers

Add 30/48 and 81/72

1^st number: 30/48, 2^nd number: 1 9/72

30/48 + 81/72 is 7/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 48 and 72 is 144
   
   Next, find the equivalent fraction of both fractional numbers with denominator 144
2. For the 1st fraction, since 48 × 3 = 144,
   30/48 = 30 × 3/48 × 3 = 90/144
3. Likewise, for the 2nd fraction, since 72 × 2 = 144,
   81/72 = 81 × 2/72 × 2 = 162/144
4. Add the two like fractions:
   90/144 + 162/144 = 90 + 162/144 = 252/144
5. 252/144 simplified gives 7/4
6. So, 30/48 + 81/72 = 7/4
   In mixed form: 13/4

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