What is the value of the expression below -0.75-(-2/5) + 0.4 + (-3/4) help please!!

1 answer:

8 0

-0.75-(-2/5) + 0.4 + (-3/4)

Simplify it :-)

-0.75 + $\frac{2}{5}$ + 0.4 - $\frac{3}{4}$

Add the like terms / add your decimals with your decimals & your fractions with your fractions.

(-0.75 + 0.4) + ( $\frac{2}{5}$ - $\frac{3}{4}$ )

Simplify :-)

0.35 + ( $\frac{8}{20}$ - $\frac{15}{20}$ )

Simplify :-)

0.35 + (- $\frac{7}{20}$ )

Now you turn your decimal into a fraction.

0.35 = 35/100 = 7/50

NEW PROBLEM : $\frac{7}{50} +$ + $\frac{7}{20}$ = ??

Make both denominators 100.

$\frac{7}{50}$ × $\frac{2}{2}$ = 14 / 100

7/20 × 5/5 = 35/100

NEW PROBLEM : $\frac{14}{100}$ + $\frac{35}{100}$ = $\frac{49}{100}$

:-)

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