Simplification 27 out of 9; - 30 out of 45 | Math enthusiast | Mathematical art

Simplification 27 out of 9; - 30 out of 45

9-27
= -3
; - 30 out of 45
=2 / 3
Benefactor, I see your bones are strange,
He is a man of noble bearing and wisdom,
He is a unique talent in the Wulin
If you devote yourself to study, you will become a great tool in the future,
I have a little test, please click next to the answer
"Choose as satisfactory answer"

RELATED INFORMATIONS

1. Take off the formula to calculate. (can simple calculate want simple calculate) beg big God urgent 1.4/9 4 / 9 4 / 4 2 8 / 3 / (3 / 8 * 4 / 1) 37 / 2 + 7 / 5 * 25 / 14) / 35 / 34 36x (1 + 4 / 1 + 6 / 1-3 / 1)
2. 1. Three and one eighth × 7.4 - three and one eighth + 3.6 × 3.25 2. Ten and five quarters - (8.8-5 / 7) + 2 / 7 3. 3.14 × 4.3 + 7.2 × 7 / 3-1.5 × 3.14 4、1/2×3+1/2×3+1/3×4…… +1/2010×2011
3. How to simplify the three out of two Be careful
4. The calculation of [1 - (1 / 4 + 3 / 8)] / 1 / 4 can be simplified and must be simplified
5. How to calculate 7 / 8 to 3 / 4 to 1 / 8?
6. (3 / 4 + 5 / 8) * what can be easily calculated in the calculation of 16 disjunction formula should be simply calculated
7. 5 out of 8 × 9 out of 1 × 5 out of 4
8. (8 / 9 + 1 and 3 / 7 + 6 / 11) / (3 / 11 + 5 / 7 + 4 / 9) simple calculation
9. How to calculate 1 × 2 + 2 × 3 + 3 × 4 + 4 × 5 + 5 × 6 + 6 × 7 + 7 × 8 + 8 × 9 + 9 × 10 + 10 × 11
10. The reduction ratio is 0.4:2.8
11. Use the integral multiplication formula to calculate the following questions: (1) 10 and one-third × 9 and two-thirds
12. 80.8x10.1-808 thank you,
13. 1 + 1 + 2 of 1 + 1 + 2 + 3 of 1 + 1 + 2 + 3 + 4 of 1 + 1+2+3+…… +1 out of 100 = simple calculation, thank you for your help
14. 1/2+(1/3+2/3)+（1/4+2/4+3/4）+···+（1/10+2/10+···9/10） And this (1 + 1 / 2) * (1 + 1 / 4) * (1 + 1 / 6) * · * (1 + 1 / 10) * (1-1 / 3) * (1-1 / 5) * · * (1-1 / 9)
15. 0.75+(-2 3/4)+(0.125)+(-12 5/7)+(-4
16. X-4 1 = 5 3 8 3 + x = 12 11 X-5 2-7 2 = 5 3 Help me solve these three equations!
17. 81^1/2-(1/8)^-1+3^0=?
18. (0.0081)^-1/4-[3*(7/8)^0]^-1*[81^-0.25+(27/8)^-1/3]^-1/2-10*0.027^1/3=?
19. (0.0081) ^ - 1 / 4 - [3 * (7 / 8) ^ 0] ^ - 1 * [81 ^ - 0.25 + (27 / 8) ^ - 1 / 3] ^ - 1 / 2-10 * 0.027 ^ 1 / 3 important process
20. The solution proportion: (1) x: 3 / 8 = 2 / 3: 4 (2) x: 6 = 2 / 7 (3) x: 0.3 = 0.4:0.8 (4) 1.75 = 6 / 6 x