Question

Calcule o valor da expressão:

2/3- 5/4+ 3/5+ 1/2- 4/4

Answer 1

Explicação passo-a-passo:

$\dfrac{2}{3} - \dfrac{5}{4} + \dfrac{3}{5} + \dfrac{1}{2} - \dfrac{4}{4}$

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$\dfrac{2}{3} + \dfrac{ - 5 - 4}{4} + \dfrac{3}{5} + \dfrac{1}{2}$

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$\dfrac{2}{3} + \dfrac{ - 9}{4} + \dfrac{3}{5} + \dfrac{1}{2}$

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$\dfrac{40 - 135 + 36 + 30}{60}$

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$= \dfrac{ - 29}{60} = > - \dfrac{29}{60}$

Espero ter ajudado !!!

Answer 2

Resposta:

$2/3- 5/4+ 3/5+ 1/2- 1 = \\ \frac{60 -70 + 45 + 30 - 60}{60} = \\ \frac{ - 10 + 75 - 60}{60} = \\ \frac{ - 10 + 15}{60} = \\ \frac{5 \div 5}{60 \div 5} = \frac{1}{12}$

espero que isso ajude vc