Simple drag calculation: 22 * 3 / 4 + 25 * 75% - 7 * 0.75

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• 1. Fifteen and eleven thirds by one seventh
• 2. A minimalist fraction reduces its numerator by two times and its denominator by three times. It can be reduced to one seventh. The original fraction is ()
• 3. What is the number represented by N in the equation [(- 7.3) - n] / (- 5 and one seventh) = 0
• 4. What's the mathematical meaning of the fact that the color TV is one seventh cheaper than before The color TV is cheaper than before. What's the mathematical meaning of one seventh meter
• 5. 1. One and five eighths of the fractional unit is () it has () such units, plus () is 3? 2. Two and three fourths of the fractional unit Yes, it has () such units, plus () such units is the minimum sum
• 6. 8 and one seventh of the fractional unit is () which contains () such units. Remove () such units from it and it becomes a multiple of 7 3Q
• 7. (- 12) × (- 1 / 3) - (- 4) × 1 / 3 + 11 × (- 1 / 3) I've been thinking about this question for a long time. I really can't write it (- three and one seventh) is negative three and one seventh
• 8. 4.7-3.4 + (- 8.3) (- 2.5) - 1 / 2 + (- 1 / 5) 1 / 2 - (- 0.25) - 1 / 6 Mixed operation of 1 / 3 + (- 5 / 6) - (- 1 / 2) - 2 / 3 rational numbers
• 9. 1:7-3:2-6:5
• 10. 2 out of 5 of () is 8 out of 15; 2 out of 9 is 8 out of 3
• 11. Calculation: (1) | - 24 | △ | - 3 | ×| - 2 | (2) (5 / 6 - 1 / 2 + 1 / 3) × 6 I want the process, crab
• 12. Solution equation: 30 × 3 / 4 x = 20 × 5 / 6 x
• 13. 3 / 4 + x = 5 / 4 + x = 5 / 6
• 14. The absolute value of one third minus one half plus minus five and five sixths plus minus two plus five sixths plus minus one and one fourth
• 15. One quarter, two fifths, three quarters, one third, three fifths, four fifths, from small to large
• 16. Three fourths of the number a is equal to two seventh of the number already counted. What is the ratio of the imaginary number to the number already counted? A: the false number is equal to
• 17. Given that three numbers a, B and C satisfy 1, ABC ≠ 0.2, a + B + C = ABC, please write two formulas that satisfy the conditions, Come on, it's no use if you're late. It's no more than 9 o'clock today. Thank you o. By the way, except 1 + 2 + 3 = 1 × 2 × 3 （-1）+（-2）+（-3）=（-1）×（-2）×（-3） Write one more of these two
• 18. If a = 80 ° and B = C, then C = ()
• 19. a+a=b+b+b,a+c+b+c=80,b+b+b=c+c+c+c,a=?,b=?,c=?
• 20. It is known that a multiplied by two-thirds equals B multiplied by three-quarters, and four fifths of B equals C multiplied by five sixths (a, B, C are not zero), then a: C equals?: