Respuesta :

Answer:

The value of the expression is [tex]\frac{9}{20}[/tex]

Step-by-step explanation:

In order to sum or subtract these fractions we need to find their LCM.

The overall LCM is 20.

Thus:

  • 4/5=16/20
  • 5/4=25/20

The we get:

= -16/20+25/20

Which gives:

=9/20

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