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2/7 , 45/100 , 50/100 , 7/10
2/7 , 9/20 , 1/2 , 7/10
40/140 , 63/140 , 70/140 , 98/140
Diurutkan menjadi : 2/7 , 45% , 0,50, 0,7
b. 4/5 , 55% , 45% , 0,5
4/5 , 55/100 , 45/100 , 5/10
4/5 , 11/20 , 9/20 , 1/2
14/20 , 11/20 , 9/20 , 10/20
Diurutkan menjadi : 45% , 0,5 , 55% , 4/5
c. 750% , 0,65 , 70% , 8/10
750/100 , 65/100 , 70/100 , 8/10
15/2 , 13/20 , 7/10 , 4/5
150/10 , 13/20 , 14/20 , 16/20
Diurutkan menjadi : 0,65 , 70% , 8/10 , 750%
2. a. 4/9 + 2/9 = 6/9 = 2/3
b. 3/6 + 5/6 = 8/6 = 4/3 = 1 1/3
c. 2 1/3 + 3/4 = 7/3 + 3/4 = 28/12 + 9/12 = 37/12 = 3 1/12
d. 2/3 + 3 5/9 = 2/3 + 32/9 = 6/9 + 32/9 = 38/9 = 4 2/9
e. 2/3 + 2 1/2 + 3 1/4 = 2/3 + 5/2 + 13/4 = 8/12 + 30/12 + 39/12 =
77/12 = 6 5/12
3. a. 2/15 - 1/2 + 3/10 = 4/30 - 15/30 + 9/30 = -2/30 = -1/15
b. 3/7 + 4/21 - 13/14 = 18/42 + 8/42 - 39/42 = -13/42
c. 4 2/5 - 1 1/3 + 2 3/4 = 22/5 - 4/3 + 11/4 = 264/60 - 80/60 + 165/60
= 349/60 = 5 49/60
d. 10 1/4 + 1 2/3 + 20 7/8 = 41/4 + 5/3 + 167/8 = 246/24 + 40/24
+ 501/24 = 787/24 = 32 19/24
e. 2,25 + 25% + 1 1/2 = 225/100 + 25/100 + 3/2 = 225/100 + 25/100
+ 150/100 = 400/100 = 4/1 = 4