Question

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10) Determine o valor da expressão sabendo que: a= -4/5 , b= 5/4, c= 3/2
a) a + b +c =
b) 2a + C-b=
urgente por favor​

Answer 1

Resposta:

a) $\frac{-4}{5}+\frac{5}{4} +\frac{3}{2}= \frac{-16+25+30}{20}= \frac{39}{20}$

b)$2*(\frac{-4}{5})+\frac{3}{2}-\frac{5}{4}= \frac{-16}{10}+\frac{3}{2}-\frac{5}{4}=\frac{-32+30-25}{20}=\frac{-27}{20}$