What's the percentage of 3 out of 5 that is 9 out of 10?

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• 1. (1) What is the ratio of 1 / 2 of 2 / 7? What is the ratio of 5 / 9 to 1 / 3? (1) What is the ratio of 1 / 2 of 2 / 7? (2) how many times is 5 / 9 of 1 / 3? (3) how many times is 4 / 4 multiplied by 3 / 10?
• 2. If a is 5 / 9 of B and B is 2 / 3 of C, how much less is a than C and how much is a (B plus C)?
• 3. 6 and a third = a few thirds = five and a few fractions = five and a few tenths
• 4. 5 is a fraction of 20, a quarter of 20 is a third of 60
• 5. How many parts of a decimeter is 5cm?
• 6. Four out of 25 is a fraction of nine out of five
• 7. If 1 / 6 of the number is equal to 3 / 5 of the false number, what is 3 / 9 of the false number equal to?
• 8. What is 1 / 12 of 5 / 8?
• 9. 68% = ()% = (): () = fraction
• 10. 8 out of 12
• 11. 1 / 5 + 5 / 7 - 3 / 7 + 4 / 5 is equal to several parts
• 12. 3.5 = fraction
• 13. One fifth of three tons is a fraction of a ton, a fraction of a ton
• 14. What is the maximum true fraction of a molecule 1?
• 15. The product of the numerator and denominator of a simplest fraction is 36. What is the number? Urgent ······ urgent
• 16. The maximum true fraction of molecular time 1
• 17. The sum of the numerator and denominator of a simplest fraction is 18. Which fraction is the largest
• 18. 15:5 3x [- 0.75] x [- 3:9 5x [- 13:5] =?
• 19. One job, originally planned to be completed in 10 days, was actually completed in 8 days, and the working time was shortened______ %, work efficiency improved______ %．A.12.5   B.20   C.25   D.10．
• 20. One job, originally planned to be completed in 10 days, was actually completed in 8 days, and the working time was shortened______ %, work efficiency improved______ %．A.12.5   B.20   C.25   D.10．