29/36+5/54=0,898

Compute exactly:

• Common denominator: 108
• 29/36 = 87/108
• 5/54 = 10/108
• Sum = 97/108

So the exact result is 97/108 ≈ 0.898148148...

If you round to three decimals (as 0,898 in some locales), you get 0.898. But the exact value is 0.898148..., not exactly 0.898.