Answers

Add 81/90 and 6/72

81/90 + 6/72 is 59/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 90 × 4 = 360,
   81/90 = 81 × 4/90 × 4 = 324/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   6/72 = 6 × 5/72 × 5 = 30/360
4. Add the two like fractions:
   324/360 + 30/360 = 324 + 30/360 = 354/360
5. 354/360 simplified gives 59/60
6. So, 81/90 + 6/72 = 59/60

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