• Matéria: Matemática
  • Autor: felipebarbeta37
  • Perguntado 5 anos atrás

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

Respostas

respondido por: Makaveli1996
1

Oie, Td Bom?!

  = \frac{2}{3}  -  \frac{5}{4}  +  \frac{3}{5}  +  \frac{1}{2}  -  \frac{4}{4}

 =  \frac{2}{3}   +   \frac{ - 5 - 4}{4}  +  \frac{3}{5}  +  \frac{1}{2}

 =  \frac{2}{3}  +  \frac{ - 9}{4}  +  \frac{3}{5}  +  \frac{1}{2}

 =  \frac{2 \:  .\: 20}{3 \: . \: 20}  +  \frac{ - 9 \: . \: 15}{4 \: . \: 15}  +  \frac{3 \: . \: 12}{5 \: . \: 12}  +  \frac{1 \: . \: 30}{2 \: . \: 30}

 =  \frac{40}{60}  +  \frac{ - 135}{60}  +  \frac{36}{60}  +  \frac{30}{60}

 =  \frac{40 - 135 + 36 + 30}{60 }

 =  \frac{106 - 135}{60}

 =  \frac{ - 29}{60}

 =  -  \frac{29}{60}

Att. Makaveli1996

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