Question

A)2/3+3/4
B)2/3-3/4
C)3/2*1/4
D)3/2/1/5
E)-2/3+1/5
F)5/4*3/2
G)-4/3/5/4
H)3/5-2

Answer 1

Resposta:

A)

$\frac{2}{3} + \frac{3}{4} = \frac{8 + 9}{12} = \frac{17}{12}$

B)

$\frac{2}{3} - \frac{3}{4} = \frac{8 - 9}{12} = \frac{ - 1}{12}$

C)

$\frac{3}{2} \times \frac{1}{4} = \frac{3}{8}$

D)

$\frac{3}{2} \div \frac{1}{5} = \frac{3}{2} \times \frac{5}{1} = \frac{15}{2}$

E)

$\frac{ - 2}{3} + \frac{1}{5} = \frac{ - 10 + 3}{15} = - \frac{ - 7}{15}$

F)

$\frac{5}{4} \times \frac{3}{2} = \frac{15}{8}$

G)

$\frac{ - 4}{3} \div \frac{5}{4} = \frac{ - 4}{3} \times \frac{4}{5} = \frac{ - 16}{15}$

H)

$\frac{3}{5} - 2 = \frac{3 - 10}{5} = \frac{ - 7}{5}$