Question

oblicz 7/6+(-5/4-4/3)
[tex] \frac{7}{6} + ( - \frac{5}{4} - \frac{4}{3} )[/tex]
[tex] - (2 \times \frac{2}{3}) + \frac{7}{15} [/tex]
[tex] -1 \times \frac{9}{16} + \frac{11}{12} [/tex]
[tex]1 \times \frac{5}{8} - ( - 2 \times \frac{2}{3} + 0.25)[/tex]
[tex]1 \times \frac{2}{5} - 3 \times \frac{7}{8} - 0.125[/tex]
[tex] \frac{1}{2} - \frac{1}{3} - ( \frac{1}{4} - \frac{1}{5} )[/tex]
​

Answer 1

Odpowiedź:

7/6 + (- 5/4 - 4/3) =

= 7/6 + ( - 15/12 - 16/12) =

= 14/12 + (- 31/12) =

= 14/12 - 31/12=

= - 17/12=

= - 1 i 5/12

- (2 * 2/3) + 7/15 =

= - 4/3 + 7/15=

= - 20/15 + 7/15 =

= - 13/15

- 1 * 9/16 + 11/12 =

= - 9/16 + 11/12 =

= - 27/48 + 44/48 =

= 17/48

1 * 5/8 - (-2 * 2/3 + 0,25) =

=  5/8 - ( - 4/3 + 25/100) =

=  5/8 - ( - 4/3 + 1/4) =

=  5/8 - ( - 16/12 + 3/12) =

=  5/8 - (- 13/12) =

=  5/8 + 13/12 =

=  15/24 + 26/24 =

= 41/24=

= 1 i 17/24

1 * 2/5 - 3 * 7/8 - 0,125 =

= 2/5 - 21/8 - 1/8 =

= 16/40 - 105/40 - 5/40=

= - 89/40 - 5/40 =

= - 94/40 =

= - 2 i 14/40 =

= - 2 i 7/20

1/2 - 1/3 - (1/4 - 1/5) =

= 3/6 - 2/6 - (5/20 - 4/20) =

= 1/6 - 1/20 =

= 10/60 - 3/60 =

= 7/60

Szczegółowe wyjaśnienie: