How do you evaluate $.4 \cdot .3$ $.4 * .3$ ?

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Answer 1 · 2017-03-04T18:29:54

$\frac{3}{25}$ $3/25$

Turn the two numbers into fractions and then multiply.

$0.4 = \frac{4}{10} = \frac{2}{5}$ $0.4=4/10=2/5$

$0.3 = \frac{3}{10}$ $0.3=3/10$

$(\frac{2}{5}) \cdot (\frac{3}{10}) = \frac{2 \cdot 3}{10 \cdot 5} = \frac{6}{50} = \frac{3}{25}$ $(2/5)*(3/10)=(2*3)/(10*5)=6/50=3/25$

Answer 2 · 2017-03-04T22:45:24

A different approach

$0.12$ $0.12$

$0.4$ $0.4$ is the same as $4 \times \frac{1}{10}$ $4xx1/10$

$0.3$ $0.3$ is the same as $3 \times \frac{1}{10}$ $3xx1/10$

Putting all of this together gives.

$0.4 \times 0.3 = 4 \times 3 \times \frac{1}{10} \times \frac{1}{10}$ $0.4xx0.3" "=" "4xx3xx1/10xx1/10$

$12 \times \frac{1}{100} = 0.12$ $12xx1/100 = 0.12$

As the question is in decimal format the solution should also be in decimal format

How do you evaluate .4 * .3.4⋅.3.4 * .3?