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

Respuesta :

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

Simplify it :-)

-0.75 + [tex] \frac{2}{5} [/tex] + 0.4 - [tex] \frac{3}{4} [/tex] 

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

(-0.75 + 0.4) + ( [tex] \frac{2}{5} [/tex] - [tex] \frac{3}{4} [/tex] )

Simplify :-)


0.35 + ( [tex] \frac{8}{20} [/tex] - [tex] \frac{15}{20} [/tex] )

Simplify :-)

0.35 + (-[tex] \frac{7}{20} [/tex] )

Now you turn your decimal into a fraction.

0.35 = 35/100 = 7/50

NEW PROBLEM : [tex] \frac{7}{50} + [/tex] + [tex] \frac{7}{20} [/tex] = ??

Make both denominators 100.

[tex] \frac{7}{50} [/tex] × [tex] \frac{2}{2} [/tex] = 14 / 100

7/20 × 5/5 = 35/100

NEW PROBLEM : [tex] \frac{14}{100} [/tex] + [tex] \frac{35}{100} [/tex] = [tex] \frac{49}{100} [/tex]

:-)




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