In the four mixed operations of fractions, 7 / 9 + 1 / 4 × 8 / 9 are simple operations. How to calculate In a problem, there are subtraction and multiplication. Which one is the first?

RELATED INFORMATIONS

• 1. How to calculate 8 / 9 [3 / 4 - (7 / 16-1 / 4)] by disjunction formula
• 2. Simple calculation of 102 * 0.35
• 3. On the premise that the square of X divided by 25 plus the square of Y divided by 16 equals 1, the maximum and minimum values of Z equal to x-2y can be obtained
• 4. 10 times (8 / 5-5 / 8 divided by 37.5%)
• 5. X-one third [x-one third (X-9)] = one ninth (x + 9) + 2
• 6. The minute hand of Feifei's clock is 6 cm long. After 15 minutes, how many centimeters has his tip gone? How many square centimeters has the minute hand rotated?
• 7. Divide a number by 0.2 and divide it five times in a row. The quotient is 625. What's the number?
• 8. If the divisor remains the same, the divisor divided by 2, the quotient should also be divided by 2______ (judge right or wrong)
• 9. 8-2 divided by (- 4) - 1 / 8
• 10. The development of chemistry has made a lot of contributions to improve the quality of human life. Please give two examples in daily life to illustrate
• 11. One divided by 3 / 2 divided by 2 / 3 divided by 3 / 4 divided by 4 / 5. Divided by 2005 / 2006
• 12. 2005 divided by 2005 and 2005 out of 2006
• 13. 2006 divided by 2006 and 2005 is equal to?
• 14. What is twelve and two fifths times fifteen fifths?
• 15. Seven and three fifths are two fifths of five
• 16. 8.4 plus 40% of a number equals 12, how much is this number five and two fifths * (three fourths + 0.5) / / two and one fourth
• 17. Simple calculation 18.125 - (13.5-1.875) + 0.125-6.5
• 18. How to calculate 63-45-55 + 137 with simple operation
• 19. Calculation: (45 + 18) - (8 − 125)
• 20. Simple operation of 125 × 0.8 △ 125 × 0.8