The search query 4 11/16 + 6 9/16 - 3/4 + 16 15/16 - 3/4 + 6 9/16 - 3/4 + 4 11/16 - 3/4 returns = 36.4375 -- cool.
The search query 4 5/16 + 6 9/16 - 3/4 + 16 15/16 - 3/4 + 6 9/16 - 3/4 + 4 11/16 - 3/4 (changing only the first number from 11/16 to 5/16) doesn't show a calculated result, just web search results.
Working query:

Not-working query:

User should see a calculator result.