Răspuns :

Bveverita22id

[tex] \frac{1}{2} + 0.75 - (0.1 + \frac{1}{2} - 0.5 + \frac{9}{10} ) \div 4 = \\ = 0.25 + 0.75 - ( \frac{1}{10} + \frac{1}{2} - \frac{1}{2} + \frac{9}{10} ) \div 4 = \\ = 0.25 + 0.75 + - 1 \div 4 = \\ = 0.75[/tex]

1/2+0,75-(0,1+1/2-0,5+9/10):4=

=0,5+0,75-(0,1+0,5-0,5+0,9):4=

=0,5+0,75-1:4=

=0,5+0,75-0,25=

=1,25-0,25=1

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