Question

Calcule o valor de cada expressão:
a) 3/5-1-2/5

b) 3/5-0,2+1/10 =

c)-3-2-4/3 =

d) 4-1/10+2/5 =

e) 2/3-1/2ele em cima -5 =

f) -5/12 -1/12+2/3 =

Calculo pfvvvv

Answer 1

$\dfrac35-1-\dfrac25=\dfrac35-\dfrac55-\dfrac25=\dfrac{3-5-2}{5}=\dfrac{-10}{5}=-2\\\\\\\dfrac35-0.2+\dfrac{1}{10}=\dfrac{6}{10}-\dfrac{2}{10}+\dfrac{1}{10}=\dfrac{6-2+1}{10}=\dfrac{5}{10}=\dfrac12$