A.y/5 x 3/7 x 3 = 27/35.
y/5 x 3/7 = 27/35 :3
y/5 x 3/7 = 9/35
y/5 = 9/35 :3/7
y /5 = 3/5
y ;5 = 3:5
y:5 = 0,6
y = 0,6 x5
y = 3
A. y/5 x 3/7 x 3 = 27/35
y/5 x 9/7 = 27/35
y/5 = 3/5
y = 3
B.42/25 : y/5 = 1 : 5/6
42/25 : y/5 = 6/5
y/5 = 42/25 : 6/5
y/5 = 7/5
y = 7