How to calculate the ratio of 2 / 3 to 6 / 7?

How to calculate the ratio of 2 / 3 to 6 / 7?

Two out of three to six out of seven
= 2 / 3 / 6 / 7
= 2 / 3 × 7 / 6
= 7 / 9
That is, their ratio is 7 / 9

What is the ratio of 2 / 3 to 6 / 7

（6.8-5.4）* 2.75-0.9

(6.8-5.4)*2.75-0.9
=1.4*2.75-0.9
=3.85-0.9
=2.95

Change the following fraction into a fraction with a denominator of 36 and a constant size. Eight out of nine = ()

32 out of 36

To reduce the denominator of 12 out of 36 by 12 times, in order to keep the size of the fraction unchanged, the fraction should be changed from () to ()

If the denominator of 12 out of 36 is reduced by 12 times, in order to keep the size of the fraction unchanged, the numerator should be (reduced by 12 times) and the fraction should be (1 / 3)

If the numerator of 7 / 18 is increased by 14, the denominator must be increased (). A.14 b.18 c.36 D.3
I have a class this afternoon

7/18=(7+14)/(18+x)
x=36
Choose C

Add 36 to the denominator of 12 out of 18. How should the molecule be changed to keep the same size

Molecular plus 24
12/18=(12+24)/(18+36)=36/54

Only when the numerator of 18 / 36 is reduced by three times and the denominator is () times, can the value of fraction be kept unchanged

Only when the numerator of 18 / 36 is reduced by three times and the denominator (at the same time) is reduced by three times, can the value of fraction remain unchanged

Change 14 / 21 of a fraction into a fraction whose denominator is 54 and equal to the original fraction

14 / 21 can be reduced to 2 / 3 (the numerator and denominator are all multiples of 7)
2 / 3 times 18 / 18 is 36 / 54
14/21=2/3=36/54

What is the simplest fraction of 14 out of 21 numerators and denominators

Two thirds (2 / 3)