What's 2 / 27 times 45

What's 2 / 27 times 45

Original formula = 2 / 27 * 45
=2/3*5
=10/3

What's three out of one to nine out of two

Negative 1.5

(five and four only one plus three and nine only one) plus x equals 40,

(five and four only one plus three and nine only one) plus x equals 40
13 of 8 and 36 + x = 40
X = 40-8 and 13 / 36
X = 31 and 23 / 36

(4 / 5 plus 9 / 10) times 20 (1 / 2 + 1 / 7) times 2 times 7

(4 out of 5 plus 9 out of 10) times 20
=（4/5+9/10)*20
=4/5*20+9/10*20
=16+18
=34
(1 / 2 + 1 / 7) times 2 times 7
=1/2*2*7+1/7*2*7
=7+2
=9

How about 9 times 5 out of 13 times 7 out of 9 times 39 out of 10

(13 / 9) * 5 * (7 / 9) * (39 / 10) = 91 / 81 * 39 / 2 = 3549 / 162 cross examination: you have miscalculated. Supplement: where is wrong, unless there is a problem with your title. Cross examination: my title is not wrong, but your number is wrong. Supplement: I checked, that's right! Please advise! Cross examination: the number should be 21 out of 2. Supplement: sorry, I really read my title wrong, please understand!
9*(5/13)*(7/9)*(39/10)
=7*3/2
=21/2"

What's 2880 times 10 out of 7

2880*(10/7) = 4 114.2857142857

One to several equals eight to eleven, and three to several equals eighteen

11 out of 8 equals 8 out of 11
Three to one in six is 18

(11 / 18 + 8 / 9) × 2 / 3 ／ 1 / 2

Remove two fractions from the six numbers 1 / 3, 5 / 6, 2 / 9, 5 / 12, 5 / 18 and 1 / 36, so that the sum of the remaining fractions is exactly equal to 1
What's the formula

1/3=12/36 5/6=30/36 2/9=8/36 5/12=16/36 5/18=10/36 1/36=1/36
1/3+5/6+2/9+5/12+5/18+1/36=(12+30+8+15+10+1)/36=76/36
76/36-1=(76-36)/36=40/36
In the molecule 1230815101, only 30 + 10 = 40, corresponding to 5 / 6 and 5 / 18 fractions
A: take out 5 / 6 and 5 / 18

Rule 18,9,4,2, (), 1 / 6
A3 B2 C1 D1/3

D
18/9=2
4/2=2
One third / one sixth = 2