3.5 x 1.4

asked by guest
on Sep 20, 2024 at 3:30 am



You asked:

Evaluate the expression: \(3.5 \cdot 1.4\)

MathBot Answer:

\[3.5 \cdot 1.4 = \frac{49}{10} = 4.9\]

\[\begin{aligned}3.5 \cdot 1.4& = \left(3 + \frac{5}{10}\right) \cdot \left(1 + \frac{4}{10}\right)\\& = \left(3 + \frac{1}{2}\right) \cdot \left(1 + \frac{4}{10}\right)\\& = \frac{7}{2} \cdot \left(1 + \frac{4}{10}\right)\\& = \frac{7}{2} \cdot \left(1 + \frac{2}{5}\right)\\& = \frac{7}{2} \cdot \frac{7}{5}\\& = \frac{49}{10}\end{aligned}\]

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