Question

solve this problem: 3 2/5 -2 1/2​

Answer 1

Answer:

9/10

Step-by-step explanation:

3 2/5 -2 1/2​

17/5 - 5/2

(34-25)/10

9/10

Answer 2

The given question is to solve this problem: 3 2/5 -2 1/2

The expression given in the question is

$3 \times \frac{2}{5} - 2 \times \frac{1}{2}$

first, we have to change the mixed fraction into either a proper or an improper fraction.

It is noted that the mixed fraction will always be reduced only to the improper fraction.

Let us change this mixed fraction into improper fractions.

$3 \times \frac{2}{5} = \frac{15 + 2}{5} = \frac{17}{5}$

the next one

$2 \times \frac{1}{2} = \frac{4 + 1}{2} = \frac{5}{2}$

on substituting these values we get the final answer as

$\frac{17}{5} - \frac{5}{2}$

we have to take the LCM to solve this subtraction problem.

The LCM is 5*2=10.

$\frac{17 \times 2}{5 \times 2} - \frac{5 \times 5}{2 \times 5}$

On further proceedings, we get the value as

$\frac{34}{10} - \frac{25}{10}$

$\frac{9}{10}$

Therefore, the final answer to the given question is 9/10.

Hence, by simplifying these two fractions we get the final value as 0.9

# spj6