2/9 + (5/18+5/12)=0,917

Compute step by step:

• 5/18 + 5/12 = 25/36
• 2/9 = 8/36

Then total: 8/36 + 25/36 = 33/36 = 11/12.

Decimal form: 11/12 = 0.916666..., i.e., 0.91666...

Rounded to three decimals: 0.917.

So, the exact value is 11/12 (0.916666…), and it matches 0.917 only as a three-decimal approximation.