Ten out of thirty x equals two out of five X?

Ten out of thirty x equals two out of five X?

Ten out of thirty x equals two out of five
10x=12
x=1.2

Two fifths x plus three x equals two fifths and two fifths times two thirds plus thirteen thirtieth x equals four

2x/5+3x=22/45
18x+135x=22
153x=22
x=22/153
2/5×2/3+13x/30=4
8+13x=120
13x=112
x=112/13

Arrange the following scores from small to large: 14191324142315191323

Because: 1519 > 14191423 > 1323 > 1324 and 1419 > 1423 answer: 1519 > 1419 > 1423 > 1323 > 1324

They are 14 out of 19, 13 out of 24, 14 out of 23, 15 out of 19 and 13 out of 23

13/24＜13/23＜14/23＜14/19＜15/19
Comparing the same denominator with each other and the same numerator with each other, the result can be obtained without calculation