Question

Oblicz
2/3 + 3/5 3/10 * 10/11
2/3-3/5 3/7 * 14
1 i 2/7 - 1/2 1 i 3/4 * 6/7
9 i 5/8- 5i 7/10 2 i 5/8 * 1 i 1/7
2 i 3/4 - 5/12 8/15 : 4
6 i 1/6 -3 i 3/8 4i 1/2 : 1 1/8
6 i 3/4 : 3

Answer 1

2/3+3/5=10/15+9/15=19/15=1 i 4/15
2/3-3/5= 10/15-9/15=1/15
1 i 2/7- 1/2= 9/7-1/2=18/14-7/14=11/14
9 i 5/8 - 5 i 7/10=77/8-72/10=385/40-288/40=97/40=2 i 17/40
2 i 3/4 - 5/12= 11/4-5/12=33/12-5/12=28/12=2 i 4/12= 2 i 1/3
6 i 1/6- 3 i 3/8= 37/6-27/8=148/24-81/24=67/24=2 i 19/24
6 i 3/4 : 3= 27/4 * 1/3=27/12=2 i 3/12 = 2 i 1/4
3/10 * 10/11 = 30/110=15/55=3/11
3/7 * 14 = 3/7 * 14/1= 42/7 = 6
1 i 3/4 * 6/7 = 7/4 * 6/7= 42/28= 1 i 14/28= 1 i 2/4 = 1 i 1/2
2 i 5/8 * 1 i 1/7 = 21/8 * 8/7+ 168/56=3
8/15 : 4 = 8/15 * 1/4=8/60=2/15
4 i 1/2 : 1 1/8= 9/2*8/9=72/18=4