Question

Zad. 2 str. 166 * to razy a np. 1/3 to ułamek . ok
- 2/3 + 0,6 =
-4,2 - 1 1/9 =
- 3,6 - 1 1/2 =
- 2 1/3 : 0,8 =
- 5,2 * 2/7 =
- 0,6: 2/3 =
-2 3/20 + 1,27 =
-0,65 :6 1/2 =
-4,5 - 3/4 * 1/3 =
Z góry dziękuje daje NAJ !!!
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Answer 1

2/3 + 0,6 = 2/3+ 3/5 = 10/15 +9/15 = 19/15 = 1 i 4/15

 

4,2 - 1i1/9 =  4i1/5 - 1i1/9= 4i9/45 - 1 i5/45 = 3 i 4/45

 

3,6 -1i1/2= 3 i3/5 -1i1/2= 3i6/10 -1i5/10=  2 i 1/10

 

2i1/3 : 0,8= 7/3 : 4/5 = 7/3 * 5/4 = 35/12= 2 11/12

 

5,2*2/7= 5i1/5 * 2/7= 26/5 * 2/7= 52/35 = 1 i 17/35

 

0,6 : 2/3= 3/5 * 3/2 = 9/10

 

2i3/20+1,27= 2i3/20 + 1i27/100 = 2i15/100+ 1i27/100 = 3 i 42/100= 3 i 21/50

 

0,65 :6i1/2 = 0,65 : 6,5 = 6,5 : 65 = 0,1

0,65 : 6i1/2 = 13/20 : 13/2 = 13/20 *2/13 = 1/10 *1/1 = 1/10

 

 

4,5 - 3/4 *1/3 = = 4i1/2 -3/4 * 1/3 = 4i1/2- 1/4 *1/1= 4i1/2 -1/4=4i2/4-1/4= 4i1/4