Question

é urgenteeeeeeeeeeeeeeeeeee amores, efetue as adições e subtrações simplificando o resultado quando possível:

A 4/3 - 1/6

B 7/4 - 8/9

C 10/5 + 3/6

D 2/3 + 3/4 + 2/6

E5/4 - 2/6 - 4/5

F 10/3- 1/5- 2/3

G 7/5 + 2/3 - 1/3

H 18/7 + 1/3 - 3/5

Answer 1

Resposta:

A 4/3 - 1/6

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

B 7/4 - 8/9

$\frac{7}{4} - \frac{8}{9} \\ \\ \frac{63 - 32}{36} \\ \\ \frac{31}{36}$

C 10/5 + 3/6

$\frac{10}{5} + \frac{3}{6} \\ \\ \frac{60 + 15}{30} \\ \\ \frac{75}{30} \div (15) \\ \\ = \frac{5}{2}$

D 2/3 + 3/4 + 2/6

$\frac{2}{3} + \frac{3}{4} + \frac{2}{6} \\ \\ \frac{8 + 9 + 4}{12} \\ \\ \frac{21}{12} \div ( 3) \\ \\ = \frac{7}{4}$

E5/4 - 2/6 - 4/5

$\frac{5}{4} - \frac{2}{6} - \frac{4}{5} \\ \\ \frac{75 - 20 - 48}{60} \\ \\ \frac{7}{60}$

F 10/3- 1/5- 2/3

$\frac{10}{3} - \frac{1}{5} - \frac{2}{3} \\ \\ \frac{50 - 3 - 10}{15} \\ \\ \frac{47 - 10}{15} \\ \\ \frac{37}{10}$

G 7/5 + 2/3 - 1/3

$\frac{7}{5} + \frac{2}{3} - \frac{1}{3} \\ \\ \frac{21 + 10 - 5}{15} \\ \\ \frac{31 - 5}{15} \\ \\ \frac{26}{15}$

H 18/7 + 1/3 - 3/5

$\frac{18}{7} + \frac{1}{3} - \frac{3}{5} \\ \\ \frac{270 + 35 - 63}{105} \\ \\ \frac{242}{105}$