分數寫成小數再寫成 % 怎麼寫啊？

Question

1. 五分之一 = ( ) = ( )%
2. 四分之三 = ( ) = ( )%
3. 八分之三 = ( ) = ( )%
4. 25分之四 = ( ) = ( )%
5. 十分之七 = ( ) = ( )%
6. 20分之九 = ( ) = ( )%
7. 50分之31 = ( ) = ( )%
8. 200分之118 = ( ) = ( )%
9. 五分之四 = ( ) = ( )%
10. 100分之31= ( ) = ( )%
11. 25分之13 = ( ) = ( )%
12. 二分之一 = ( ) = ( )%
13. 八分之五 = ( ) = ( )%
14. 50分之19 = ( ) = ( )%
15. 20分之11 = ( ) = ( )%
16. 500分之75 = ( ) = ( )%

Answer 1

基本觀念：A分之B = B 除以 A五分之一 =0.2 = 20%四分之三 =0.75 = 75% 八分之三 = 0.375 = 37.5% 25分之四 =0.16 = 16% 十分之七 = 0.7 = 70%20分之九 = 0.45 = 45% 50分之31 = 0.62 = 62% 200分之118 = 0.59 = 59%五分之四 = 0.8 = 80% 100分之31= 0.31 = 31%25分之13 = 0.52 = 52% 二分之一 = 0.5 = 50%八分之五 = 0.625 = 62.5%50分之19 = 0.38 = 38%20分之11 = 0.55 = 55%500分之75 = 0.15 = 15%

Answer 2

1. 五分之一 = (0.2) = (20)% 2. 四分之三 = (0.75) = (75)% 3. 八分之三 = (37.5) = (37.5)% 4. 25分之四 = (0.16 ) = (16)% 5. 十分之七 = (0.7) = (70)% 6. 20分之九 = (0.45) = (45)% 7. 50分之31 = (0.62) = (62)% 8. 200分之118 = (0.59) = (59)% 9. 五分之四 = (0.8) = (80)% 10. 100分之31= (0.31) = (31)% 11. 25分之13 = (0.52) = (52)% 12. 二分之一 = (0.5) = (50)% 13. 八分之五 = (62.5) = (62.5)% 14. 50分之19 = (0.38) = (38)% 15. 20分之11 = (0.55) = (55)% 16. 500分之75 = (0.15) = (15)%

Answer 3

都乘以１００% 就可以了
ＥＸ：２００分之４５＝２２.5%

Answer 4

1. 五分之一 = (0.2) = (20)% 2. 四分之三 = (0.75) = (75)% 3. 八分之三 = (0.375) = (37.5)% 4. 25分之四 = (0.16) = (16)% 5. 十分之七 = (0.7) = (70)% 6. 20分之九 = (0.45) = (45)% 7. 50分之31 = (0.62) = (62)% 8. 200分之118 = (0.59) = (59)% 9. 五分之四 = (0.8) = (80)% 10. 100分之31= (0.31) = (31)% 11. 25分之13 = (0.52) = (52)% 12. 二分之一 = (0.5) = (50)% 13. 八分之五 = (0.625) = (62.5)% 14. 50分之19 = (0.38 ) = (38)% 15. 20分之11 = (0.55) = (55)% 16. 500分之75 = (0.15) = (15)%

Answer 5

1. 五分之一 = (0.2) = (20)% 2. 四分之三 = (0.75 ) = (75)% 3. 八分之三 = (0.375) = (37.5)% 4. 25分之四 = (0.16) = (16)% 5. 十分之七 = (0.7) = (70)% 6. 20分之九 = (0.45) = (45)% 7. 50分之31 = (0.62) = (62)% 8. 200分之118 = (0.59) = (59)% 9. 五分之四 = (0.8) = (80)% 10. 100分之31= (0.31) = (31)% 11. 25分之13 = (0.52) = (52)% 12. 二分之一 = (0.5) = (50)% 13. 八分之五 = (0.625) = (62.5)% 14. 50分之19 = (0.38) = (38)% 15. 20分之11 = (0.55) = (55)% 16. 500分之75 = (0.15) = (15)%

Answer 6

1. 五分之一 = ( 0.2) = (20 )%
2. 四分之三 = ( 0.75) = (75 )%
3. 八分之三 = ( 0.375) = (37.5 )%
4. 25分之四 = ( 0.16) = ( 16)%
5. 十分之七 = ( 0.7) = (70 )%
6. 20分之九 = (0.45 ) = ( 45)%
7. 50分之31 = ( 0.62) = ( 62)%
8. 200分之118 = (0.59 ) = ( 59)%
9. 五分之四 = ( 0.8) = ( 80)%
10. 100分之31= (0.31 ) = (31 )%
11. 25分之13 = (0.52 ) = ( 52)%
12. 二分之一 = (0.5 ) = ( 50)%
13. 八分之五 = (0.625 ) = ( 62.5)%
14. 50分之19 = ( 0.38) = (38 )%
15. 20分之11 = ( 0.55) = (55 )%
16. 500分之75 = ( 0.15) = ( 15)%

Answer 7

1. 五分之一 = (0.2) = (20)% 2. 四分之三 = (0.75) = (75)% 3. 八分之三 = (0.375) = (37.5)% 4. 25分之四 = (0.16) = (16)% 5. 十分之七 = (0.7) = (70)% 6. 20分之九 = (0.45) = (45)% 7. 50分之31 = (0.62) = (62)% 8. 200分之118 = (0.59) = (59)% 9. 五分之四 = (0.8) = (80)% 10. 100分之31= (0.31) = (31)% 11. 25分之13 = (0.52) = (52)% 12. 二分之一 = (0.5) = (50)% 13. 八分之五 = (0.625) = (62.5)% 14. 50分之19 = (0.38) = (38)% 15. 20分之11 = (0.55) = (55)% 16. 500分之75 = (0.15) = (15)%