Question

calculati

a) 4,75-4,(3)-0,(6)
b)
$x = \frac{5}{48} - \frac{7}{16} + 1 \frac{1}{8} - \frac{13}{32}$
va roggg am nevoie de ajutor rapid!!!
​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

4,(3) = (43 - 4)/9 = 39/9 = 13/3

0,(6) = 6/9 = 2/3

4,75 = 475/100 = 19/4

19/4 - 13/3 - 2/3 = 19/4 - 15/3 = 19/4 - 5 = 19/4 - 20/4 = -1/4 = -0,25

b)

x = 5/48 - 7/16 + 9/8 - 13/32

= 5/48 - 7/16 + 18/16 - 13/32

= 5/48 + 11/16 - 13/32

= 5/48 + 22/32 - 13/32

= 5/48 + 9/32

=10/96 + 27/96

= 37/96