4.249 minus 9.458 plus 8.421

asked by guest
on Nov 14, 2024 at 10:21 pm



You asked:

Evaluate the expression: \(4.249 - 9.458 + 8.421\)

MathBot Answer:

\[4.249 - 9.458 + 8.421 = \frac{803}{250} = 3.212\]

\[\begin{aligned}4.249 - 9.458 + 8.421& = 4 + \frac{249}{1000} - \left(9 + \frac{458}{1000}\right) + 8 + \frac{421}{1000}\\& = 4 + \frac{249}{1000} - \left(9 + \frac{229}{500}\right) + 8 + \frac{421}{1000}\\& = 4 + \frac{249}{1000} - \frac{4729}{500} + 8 + \frac{421}{1000}\\& = \frac{4249}{1000} - \frac{4729}{500} + 8 + \frac{421}{1000}\\& = - \frac{5209}{1000} + 8 + \frac{421}{1000}\\& = \frac{2791}{1000} + \frac{421}{1000}\\& = \frac{803}{250}\end{aligned}\]

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