Question

Find the value of (-9)(-5 /4)+7/2+(3)(2/4).​

Answer 1

Answer:

Step-by-step explanation:

(-9)(-5/4)+7/2+(3)(2/4)

(+9)(+5/4)+7/2+(6/12)

(45/36)+7/2+6/12

45+126+18/36

=189/36

=63/12

=21/6

=7/2

=3.5

Answer 2

The value of the given expression is 65/4

Step-by-step explanation:

Given:

given expression = (-9)(-5 /4)+7/2+(3)(2/4)

To find:

value of the given expression

Solution:

we simplify the expression step by step

$-9 (-\frac{5}{4}) +\frac{7}{2} + 3 (\frac{2}{4} )$

First multiplying all the values where ever needed

The -9 multiplied by (-5/4) & 3 multiplied by the fraction (2/4) will give us

$(\frac{-9(-5)}{4}) +\frac{7}{2} + (\frac{(3)2}{4} )$

$= (\frac{45}{4}) +\frac{7}{2} + (\frac{6}{4} )$

Now adding the fractions with equal denominators first

$= (\frac{45}{4} + \frac{6}{4} )+\frac{7}{2}$

$= (\frac{45+6}{4} )+\frac{7}{2}$

$= \frac{51}{4} +\frac{7}{2}$

As the denominators are not equal we use the cross multiplication method

$= \frac{51(2)+7(4)}{4(2)}$

$= \frac{102+28}{8}$

$= \frac{130}{8}$

$= \frac{65}{4}$

$-9 (-\frac{5}{4}) +\frac{7}{2} + 3 (\frac{2}{4} ) = \frac{65}{4}$

Thus, the value of the expression is 65/4

#SPJ2