Question

calcule
A)
$\frac{1}{3} + \frac{5}{6} + 4$
B)
$\frac{1}{2} - \frac{1}{4} + \frac{19}{20}$
C)
$5 - ( \frac{1}{3} + \frac{5}{6} )$

podem me ajuda?

Answer 1

OI

a) 1/3 + 5/6 + 4 ==>o mmc de 3,6,1 = 6

2 + 5 + 24/6

$\boxed{31/6}$

b) 1/2 - 1/4 + 19/20==>o mmc de 2,4,20 = 20

10 - 5 + 19/20

24/20 ÷  4

$\boxed{6/5}$

c) 5 - (1/3 + 5/6)==>o mmc de 3,6=6

 5 - (2 + 5/6)

5 - 7/6==>o mmc de 1,6 = 6

30 - 7/6

$\boxed{23/6}$

Boas lições.

Answer 2

A)    \frac{1}{3} +\frac{5}{6} +4=[/tex] ¨¨¨¨¨¨mmc(3,6) = 6

$\frac{2}{6} +\frac{5}{6} + \frac{24}{6} =\frac{31}{6}$

B)   $\frac{1}{2} -\frac{1}{4} +\frac{19}{20} =$¨¨¨¨¨¨mmc(2,4,20) = 20

$\frac{10-5+19}{20} =\frac{24}{20} =\frac{12}{10} =\frac{6}{5}$

C)    $5 - (\frac{1}{3 } +\frac{5}{6}) =$ ¨¨¨¨¨mmc(3,6) = 6

$\frac{30}{6}  - (\frac{2 + 5}{6} ) =\frac{30}{6} - \frac{7}{6} =\frac{23}{6}$