Calculation: 3 / 7 * 5 / 13 - (9 / 14-3 / 14) * - 11 / 13) - 3 / 7 * 3 / 13

RELATED INFORMATIONS

• 1. What's the ratio of 1-6:5 + 12:7-20:9 + 30:11-42:13 + 56:15-72:17
• 2. 1 / 4, 5 / 12, 7.9 / 36 Come on! Hold your fist
• 3. (1-1/4)(1-1/9)(1-1/16)(1-1/25)(1-1/36)(1-1/49)=?
• 4. 1,4,9,16,（）,（）,36,49... 1,1,2,3,5,8( ),21,34...
• 5. Find the nth number 1,4,9,16,25,36
• 6. 18: 32 0.25:1.8 12:11:9 22 1.2:4 3 18:32 0.25:1.8 11 out of 12: 22 out of 9 1.2:3 / 4
• 7. 24（）1.5＝25.5.24（）0.3＝23.7.24（）0.3＝24.3.24（）1.5＝36.24（）1.5＝22.5.24（）0.8＝30. 24 () 0.8 = 23.2 (fill in operation symbol)
• 8. How to calculate 3.8 * 2 + 3.8 * 99
• 9. Simple calculation of 72 × 0.99
• 10. Simple operation of 99 times 26
• 11. How much is 11 and 3 / 14 - (3 / 5 + 2 and 5 / 14)?
• 12. 7 of 15 × () = () × 5 = 0.3 × () = 5 of 6 × () = 8 of 9 × ()
• 13. 8 out of 9 divided by 2, 8 out of 9 divided by 4, 8 out of 9 divided by 8, 2 out of 15 divided by 1, 5 out of 7 divided by 5, 6 out of 11 divided by 3, 21 out of 15 divided by 14
• 14. 1 / 7, 4 / 7, 3 / 8, 3 / 4, 5 / 7, 2 / 7, 3 / 9, 6 / 7, 3 / 5, which are greater than 3 / 7,
• 15. Write more than 2 / 3, less than 6 / 7, and the numerator is a simple fraction of 5
• 16. (13 and 2 / 3) △ 5 + (5 and 1 / 3) △ 5 + (196 and 3 / 7) × 1 / 5 - (+ 76 and 3 / 7) △ (- 5)=
• 17. Solution ratio X: 7 / 9 = 14:14-1 / 3 x = 5x / 6 2X of 3 + 2x of 2 = 2 of 3 * 1 of 4
• 18. Who can do it in a simple way?
• 19. A simple method of 6 / 7 - (4 / 5-1 / 7) stripping There is a simple way to write No easy way, no easy way
• 20. (9 and 11 / 8-3 and 14 / 5-1 and 14 / 9) × 2 and 4 / 3