Question

Oblicz:

3/7+5/7
10-4/5
6/11-4/11
7-3 1/6
2 3/5+7 4/5
6 3/7-8 4/7
6 8/9-2 5/9
1 2/9-7/9
3/4 +5/8
3 1/2+4 5/6
2/3+3/5
2/3-3/5
1 2/7 - 1/2
9 5/8-5 7/10
2 3/4- -5/12
6 1/6-3 3/8

Na dzisiaj szybko daje naj

Answer 1

3/7+5/7 = 8/7 = 1 1/7
10-4/5 = 9 5/5 - 4/5 = 9 1/5
6/11-4/11 = 2/11
7-3 1/6 = 6 6/6 - 3 1/6 = 3 5/6
2 3/5+7 4/5 = 9 7/5 = 10 2/5
6 3/7-8 4/7 = -2 1/7
6 8/9-2 5/9 = 4 3/9
1 2/9-7/9 = 11/9 - 7/9 = 4/9 
3/4 +5/8  = 6/8 + 5/8 = 11/8 = 1 3/8
3 1/2+4 5/6 = 3 3/6 + 4 5/6 = 7 8/6 = 8 2/6
2/3+3/5 = 10/15 + 9/15 = 19/15 = 1 4/15
2/3-3/5 = 10/15 - 9/15 = 1/15
1 2/7 - 1/2 = 1 4/14 - 7/14 = 18/14 - 7/14 = 11/14
9 5/8-5 7/10 = 9 25/40 - 5 28/40 = 8 65/40  - 5 28/40 = 3 37/40
2 3/4- -5/12 = 2 9/12 - (-5/12) = 2 4/12
6 1/6-3 3/8 = 6 8/48 - 3 18/48 = 5 56/48 - 3 18/48 = 2 38/48

Pozdrawiam :)

Answer 2

3/7+5/7= 8/7 = 1 1/7
10 -4/5= 9 1/5
6/11-4/11=2/11
7 - 3 1/6=3 5/6
2 3/5 + 7 4/5= 9 7/5= 10 2/5
6 3/7 - 8 4/7=  -2 1/7
6 8/9 - 2 5/9= 4 3/9= 4 1/3
1 2/9 -7/9= 4/9
3/4+5/8= 6/8+5/8=11/8 = 1 3/8
3 1/2+4 5/6= 3 3/6+4 5/6= 7 8/6= 8 2/6
2/3+3/5= 10/15+9/15=19/15= 1 4/15
2/3-3/5= 10/15-9/15= 1/15
1 2/7 - 1/2= 1 4/14- 7/14=18/14- 7/14= 11/14
9 5/8 - 5 7/10=9 25/40 - 5 28/40=  3 37/40
2 3/4-5/12= 2 9/12-5/12=2 4/12= 2 1/3
6 1/6 - 3 3/8= 6 4/24- 3 9/24= 2 19/24