5/9 q=1 4/5; 2/3y +1 5/6=3 1/6

Question

5/9 q=1 4/5; 2/3y +1 5/6=3 1/6

Answer 1

1)5/9q=1цел4/5
q=9/5÷5/9
q=9/5 × 9/5
q=81/25
q=3цел6/25
2)(2/3)у+1цел5/6=3цел1/6
(2/3)у=3цел1/6-1цел5/6
(2/3)у=2цел7/6-1цел5/6
(2/3)у=1цел2/6
(2/3)у=1цел1/3
у=1цел1/3÷2/3
у=4/3 × 3/2
у=2

Comments

спасибо за оценку