Matemática, perguntado por zelinagomespereira66, 11 meses atrás

5/7-2/7
1/3+1/5
3/4+1/2
2/4+2/3
2/5+3/10
5/3+1/6
1/4+2/3+1/2
1/2+1/7+5/7
3/7+5/2+1/14
4/5+1/3+7/6​

Soluções para a tarefa

Respondido por Usuário anônimo
10

¡Hey!!

Explicação passo-a-passo:

 \frac{5}{7}  -  \frac{2}{7 }  =  \frac{5 - 2}{7}  =  \frac{3}{7}  = 0.42

 \frac{1}{3}  +  \frac{1}{5}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \:  =  >  mmc \\  =  \frac{5 \times 1}{5 \times 3}  +  \frac{1 \times 3}{3 \times 5}   =  \frac{5 + 3}{15}  \\  =  \frac{8}{15}  = 0.53

 \frac{3}{4}  +  \frac{1}{2}   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  > mmc \\  =  \frac{ 3}{4}  +  \frac{2 \times 1}{2 \times 2}  =  \frac{3 + 2}{4}  =  \frac{5}{4}  = 1.25

 \frac{2}{4}  +  \frac{2}{3}   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  > mmc \\  \frac{3 \times 2}{3 \times 4}  +  \frac{4 \times 2}{4 \times 3}  =  \frac{6 + 8}{12}  =  \frac{14}{12}  = 1.16

 \frac{2}{5}  +  \frac{3}{10}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: =  >  mmc \\  =  \frac{2 \times 2}{2 \times 5}  +  \frac{3}{10}  =  \frac{4 + 3}{10}  =  \frac{7}{10}  = 0.7

 \frac{5}{3}  +  \frac{1}{6}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: =  >  mmc \\  \frac{5 \times 2}{3 \times 2}  +  \frac{1}{6}  =  \frac{10 + 1}{6}  =  \frac{11}{6}  = 1.83

 \frac{1}{4}  +  \frac{2}{3}  +  \frac{1}{2}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  > mmc \\  =  \frac{3 + 8 + 6}{12}  =  \frac{17}{12}  = 1.41

 \frac{1}{2}  +  \frac{1}{7}  +  \frac{5}{7}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  > mmc \\  =  \frac{7 + 2 + 10}{14}  =  \frac{19}{14}  = 1.21

 \frac{3}{7}  +  \frac{5}{2}  +  \frac{1}{14}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  =  > mmc \\  \frac{6 + 35 + 1}{14}  =  \frac{42}{14}  = 3

¡Espero ter ajudado

- Bons estudos & Feliz Natal..

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