Answers

Add 90/16 and 81/72

1^st number: 5 10/16, 2^nd number: 1 9/72

90/16 + 81/72 is 27/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 72 is 144
   
   Next, find the equivalent fraction of both fractional numbers with denominator 144
2. For the 1st fraction, since 16 × 9 = 144,
   90/16 = 90 × 9/16 × 9 = 810/144
3. Likewise, for the 2nd fraction, since 72 × 2 = 144,
   81/72 = 81 × 2/72 × 2 = 162/144
4. Add the two like fractions:
   810/144 + 162/144 = 810 + 162/144 = 972/144
5. 972/144 simplified gives 27/4
6. So, 90/16 + 81/72 = 27/4
   In mixed form: 63/4

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