If two thirds of a equals three fifths of B, then a: B=

If two thirds of a equals three fifths of B, then a: B=

A × 2 / 3 = B × 3 / 5
A: B = 3 / 5:2 / 3 = 9:10

Three eighths of a number is one fourth, and the fifth system one of the number is (); (two fifths of () equals two thirds of 50)

2/3
250/3

When () times five ninths equals seven eighths, two ninths is () and four fifths of a number is 120. This number is ()
() multiply by five ninths equals seven eighths
Two ninths of the time is ()
Four fifths of a number is 120. This number is ()

(1.575) multiply by five ninths equals seven eighths
Two out of nine of one is (40 / 3)
Four fifths of a number is 120. The number is (150)

Five sixths of the number a is equal to four fifths of the number B
Pilotage new curriculum standard mathematics exercise book grade 6 Volume 1 people's education press 53 pages 3 big questions, 3 small questions
A、＞ B、＜ C、=

5 / 6 is larger than 4 / 5, and the ratio of a to B is larger, which means that a is smaller. For example, a pile of coal with the same weight needs to be loaded with 10 cars in car a, and only 5 cars in car B, so car B must be larger than car a. the answer is B