tolong ya besok dibawa

1. 3/2 - 3/4 + 5/6= 18/12 - 9/12+ 10/12 = 19/12
2. 5 1/4 + 2 3/5 - 3 5/20=
5 5/20 + 2 12/20 - 3 5/20 = 4 12/20= 4 3/5
3. 5,5-2,3+25% = 5,5-2,3+0,25 = 2,95
4. 7/4+ 26% -1,15= 1,75+ 0,26 - 1,15 = 0,86
5. 15- 3 1/6= 14 6/6 - 3 1/6 = 11 5/6
7- 16% + 0,5 = 7-0,16+0,5 = 7, 34