Answers

Add 75/16 and 90/72

1^st number: 4 11/16, 2^nd number: 1 18/72

75/16 + 90/72 is 95/16.

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,
   75/16 = 75 × 9/16 × 9 = 675/144
3. Likewise, for the 2nd fraction, since 72 × 2 = 144,
   90/72 = 90 × 2/72 × 2 = 180/144
4. Add the two like fractions:
   675/144 + 180/144 = 675 + 180/144 = 855/144
5. 855/144 simplified gives 95/16
6. So, 75/16 + 90/72 = 95/16
   In mixed form: 515/16

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