Matemática, perguntado por carolinerodriguesana, 5 meses atrás

Efetue as frações

5/2 + 3/4

4/3 - 1/6

3/2 + 7/3

6/5 + 2/3 - 1/3

6/7 - 1/3 + 4/3

2/3 + 3/4 + 2/6

2/7 × 7/5

7/5 × 10/14

9/8 × 3/2

8/3 ÷ 4

9/16 ÷ 3/4

3 ÷ 2/7

Soluções para a tarefa

Respondido por justforthebois123
3

Explicação passo a passo:

\frac{5}{2}+\frac{3}{4}=\frac{10}{4}+\frac{3}{4}=\frac{10+3}{4}=\frac{13}{4}

\frac{4}{3}-\frac{1}{6}=\frac{8}{6}-\frac{1}{6}=\frac{8-1}{6}=\frac{7}{6}

\frac{3}{2}+\frac{7}{3}=\frac{9}{6}+\frac{14}{6}=\frac{9+14}{6}=\frac{23}{6}

\frac{6}{5}+\frac{2}{3}-\frac{1}{3}=\frac{6}{5}+\frac{1}{3}=\frac{18}{15}+\frac{5}{15}=\frac{18+5}{15}=\frac{23}{15}

\frac{6}{7}-\frac{1}{3}+\frac{4}{3}=\frac{6}{7}+\frac{3}{3}=\frac{18}{21}+\frac{21}{21}=\frac{18+21}{21}=\frac{39}{21}=\frac{13}{7}

\frac{2}{3}+\frac{3}{4}+\frac{2}{6}=\frac{2}{3}+\frac{3}{4}+\frac{1}{3}=\frac{3}{3}+\frac{3}{4}=\frac{12}{12}+\frac{9}{12}=\frac{12+9}{12}=\frac{21}{12}=\frac{7}{4}

\frac{2}{7}\times \frac{7}{5}=\frac{14}{35}=\frac{2}{5}

\frac{7}{5}\times \frac{10}{14}=\frac{7}{5}\times \frac{5}{7}=\frac{35}{35}=1

\frac{9}{8}\times \frac{3}{2}=\frac{27}{8\times \:2}=\frac{27}{16}

\frac{8}{3}\div \:4=\frac{8}{3}\div \frac{4}{1}=\frac{8}{3}\times \frac{1}{4}=\frac{2}{3}

\frac{9}{16}\div \frac{3}{4}=\frac{9}{16}\times \frac{4}{3}=\frac{9\times \:4}{16\times \:3}=\frac{36}{16\times \:3}=\frac{36}{48}=\frac{3}{4}

3\div \frac{2}{7}=\frac{3}{1}\div \frac{2}{7}=\frac{3}{1}\times \frac{7}{2}=\frac{3\times \:7}{1\times \:2}=\frac{21}{1\times \:2}=\frac{21}{2}

Respondido por lubsl
0

Resposta:

Não sei.

Explicação passo a passo:

Só sei, que nada sei.

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