What is the sum of 3 / 10 of 2 / 5 plus the quotient of 2 / 5 divided by 3 / 10

109 out of 75, absolutely correct, please accept

RELATED INFORMATIONS

1. What is the sum of the product of 24 and 1 / 6 plus the quotient of 2 divided by 0.5?
2. If the quotient of number a divided by number B is 0.8, then the ratio of number a to number B is (): (), number a is of number B (), number a is less than number B (), number B is more than number a () If the ratio of the diameter of the big circle to the diameter of the small circle is 3, then the ratio of the circumference of the big circle to the circumference of the small circle is (): (), and the ratio of the area is (): ()
3. The quotient of a divided by B is 3 / 4, and the simplest integer ratio of a and B is ()
4. The quotient of a divided by B is 1 and 3 / 4. A: B = (): () = (): 100
5. The quotient of a divided by B is 2 / 5, the sum of a and B is 21, a is (), B is ()
6. The quotient of a divided by B is 2 / 3, the sum of a and B is 21, a is (), B is ()
7. The quotient of a divided by B is two fifths. The sum of a and B is 21. What is a?
8. The difference between a and B is 21. What's the difference between a and B
9. The quotient of number a divided by number B is 1.5, and the ratio of number a to number B is 1______ ：______ ．
10. The quotient of the number a divided by the number B is 3 and 1 / 3; the number a increases by 20; the number a is 5 times the number B; the formula is
11. What is the sum of 6 plus 2 / 3 of a number and 10? What is the quotient of the sum of 2 / 5 and 1 / 3 divided by their difference?
12. 30 divided by 99 and 9 / 8x (- 5 and 4 / 3) divided by 25 and 25 / 23 × (- 103.7) × 0,
13. 30 divided by 99 and 9 of 8x (- 5 and 4 of 3) divided by 25 and 25 of 23 × (- 103
14. Solve the equation: five times a number is the quotient of 42 divided by 0.6
15. The quotient of 12 divided by one fourth is 8 more than a number. Find the number. Use the equation to solve
16. What is the quotient of 15 divided by 3 divided by the product of 1 / 4 and 1 / 5
17. What's the quotient of five sixths divided by the quotient of six sixths divided by the difference from the reciprocal of fifteen eighths
18. What is eight out of twenty It must be the answer
19. 5 + 1.8 divided by (x + 3) = 12,
20. A divided by B = 12.8, a divided by B = 12.5, then a = (?), B = (?) School is about to start, there are still some problems can not write, hope to teach me!