Х : 7/18 =2/3 : 7/9 и 3 3/4: 1 1/8=2 1/3 :у

Question

Х : 7/18 =2/3 : 7/9 и 3 3/4: 1 1/8=2 1/3 :у

Answer 1

7/9х=7/18×2/3
7/9х=7/27
х=7/27÷7/9
х=7/27×9/7
х=1/3

3 3/4р=1 1/8×2 1/3
15/4р=9/8×7/3
15/4р=21/8
р=21/8÷15/4
р=21/8×4/15
р=7/10

18.63х=39.1×40.5
18.63х=1583.55
х=1583.55÷18.63
х=85