Question

Ułamki zwykłe! Muszę mieć to na jutro.

4 5/9 + 2 1/3 x 4 1/2=

5 1/7 X 1 4/9 - 6 : 4 2/3=

3 1/2 X ( 2 1/4 - 1 1/2 : 6)=

1 1/5 x 1 2/3 x 1/7 + (1 1/7) do potęgi drugiej=

(2 1/6 - 2/3) do potęgi drugiej - 2 1/5=

10- 2 x (3 1/5 - 2 1/4 x 1/3)=

(7/3 - 5/12 + 1 1/2) : 2 3/4 - 5/6)=

Answer 1

 4 5/9 + 7/3 x 9/2= 4 5/9 + 63/6= 100/18 + 189/18= 289/18 = 16 1/1

13/63 - 9/7= 13/63 - 81/63= - 68/63
 1/2( 2 1/4 - 1/4)= 1
 2 x 1/7 + 64/49 = 2/7 + 64/49= 14/49 + 64/49= 78/49= 1 29/49
 (1 3/6)'2 -2 1/5= 81/36 - 11/5= 9/4 -11/5= 45/20- 44/20=1/20
 10 - 2( 3 1/5 - 3/4)= 10 - 2(3 4/20 - 15/20)= 10 - 2(49/20)=10- 98/20= 10 - 49/10=51/10= 5 1/10

Answer 2

=41/9 + 7/3 * 9/2 = 41/9 + 21/2 = 82/18 + 189/18 = 271/18 = 15całych i 1/18


=36/7 * 13/9 - 6 * 3/14 = 52/7 - 9/7 = 43/7 = 6całych i 1/7


=7/2 * (9/4 - 3/2 * 1/6 ) = 7/2 * ( 9/4 - 1/4) = 7/2 * 8/4 = 28/4 = 7


=6/5 * 5/3 * 1/7 + (8/7) do potegi drugiej = 10/35 + 64/49 = 70/245 + 320/245 = 390/245 = 1 cała i 55/245 = 1 cała i 11/49


=(13/6 - 2/3) do potegi drugiej - 11/5 = ( 169/36 - 4/9) - 11/5 = (169/36 - 16/36) - 11/5 = 153/36 - 11/5 = 765/180 - 396/180 = 369 / 180 = 2całe i 9/180 = 2 całe i 1/20


=10 - 2 * (16/5 - 9/4 * 1/3) = 10 - 2 * (16/5 - 3/4) = 10 - 2 * (64/20 - 15/20) = 10 - 2 * 49/20 = 10 - 4,9 = 5,1


=(7/3 - 5/12 + 3/2) * 4/11 - 5/6 = (28/12 - 5/12 + 18/12) * 4/11 - 5/6 = 5/12 * 4/11 - 5/6 = 5/33 - 5/6 = 10/66 - 55/66 = - 45/66

czy w tym ostatnim przykładzie jest na pewno tylko jeden nawias ?