Answers

Add 15/60 and 81/72

1^st number: 15/60, 2^nd number: 1 9/72

15/60 + 81/72 is 11/8.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 60 × 6 = 360,
   15/60 = 15 × 6/60 × 6 = 90/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   81/72 = 81 × 5/72 × 5 = 405/360
4. Add the two like fractions:
   90/360 + 405/360 = 90 + 405/360 = 495/360
5. 495/360 simplified gives 11/8
6. So, 15/60 + 81/72 = 11/8
   In mixed form: 13/8

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