Question

Z1.Oblicz:

2 5/8 + 1 3/4 - 1 1/2

1 1/7 * 1 3/4

1 1/3 : 12

2 5/6: 3 2/5* 1 1/5

Z2.

5,75 + 1 3/5

3 1/6 - 1,4

1,04 * 3 1/8

2 1/3 : 3,2

Z3.

5,12:(5-2,44)

2 DO 3 +( 3 1/5-1 1/3)

13,5- 3 1/2 : 5,25

CAŁE DZIAŁANIA NIE TYLKO WYNIKI.BARDZO PROSZĘ

Answer 1

zad.1

2 5/8 + 1 3/4 + 1 1/2 = 21/8 + 7/4 + 3/2 = 21/8 + 14/8 + 12/8 = 47/8 = 5 2/8 = 5 1/4

1 1/7 * 1 3/4 = 8/7 * 12/4 = 24/7 = 3 3/7

1 1/3 : 12 = 4/3 * 1/12 = 1/9

2 5/6: 3 2/5* 1 1/5 = 17/6 : 17/5 * 6/5 = 17/6 * 5/17 * 6/5 = 1

zad.2

5,75 + 1 3/5 = 5,75 + 1 6/10 = 5,75 + 1,6 =7,35

3 1/6 - 1,4= 3 1/6 - 1 2/5 = 19/6 - 7/5 = 95/30 - 42/30 = 53/30 =1 23/30

1,04 * 3 1/8 = 1,04 * 3,125 = 3,25

2 1/3 : 3,2= 7/3 : 3 1/5 = 7/3 : 16/5 = 7/3 * 5/16 = 35/48

zad.3

5,12:(5-2,44)= 5,12 : 2,56 = 2

2 DO 3 +( 3 1/5-1 1/3)= 8+ (3 3/15 - 1 5/15) = 8+(2 18/15-1 5/15)=8+1 13/15= 9 13/15

13,5- 3 1/2 : 5,25= 13,5 - 3,5 : 5,25= 13,5 - 0,6 = 12,9

  liczę na NAJ ;)

Answer 2

Z1.

 2i5/8 +1i3/4 -1i1/2= 2i5/8 +1i6/8 -1i 4/8= 3i11/8- 1i4/8= 2 i 7/8

 1i1/7 *1 i3/4 = 8/7 * 7/4 = 2/1 *1/1 = 2

 1 i1/3 : 12 = 4/3  * 1/12 = 1/3 *1/3 = 1/9 

 2i5/6 : 3i2/5 * 1i1/5= 17/6: 17/5 *6/5= 17/6* 5/17 *6/5= 1*6*5/1*6/5= 5/6 *6/5 = 1

 

Z2.

 5,75 + 1i3/5 = 5,75 + 1,6 = 7,35

3i1/6 - 1,4 = 3i1/6 -1i 2/5 = 3i5/30 -1i12/30= 2i35/30 -1i12/30= 1 i23/30

1,04 * 3i1/8 = 1,04 * 3,125 = 3,25

2 i1/3 : 3,2 = 7/3 : 3i1/5=7/3 : 16/5= 7/3 *5/16= 35/48 

 

Z3.

5,12 :(5-2,44) = 5,12 : 2,56= 2

2^3 +(3i1/5 -1i1/3)= 8 +(3i3/15-1i 5/15)=8+(2i18/15-1i5/15)=8+1i 13/15=9i13/15

13,5 -3 i1/2 :5,25 = 13,5 -3,5 : 5,25 = 13,5 - 0,67 = 12,83

13i1/2 -3i1/2 :5i1/4= 13i1/2 -7/2 :21/4= 13i1/2 - 7/2 *4/21= 13i1/2-1/1*2/3=

 = 13i1/2 -2/3= 13i3/6 -4/6= 12i9/6 -4/6= 12 i 5/6