3/5 times 2& 5/6=? answer me quickly

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Answer this question! 30 points and brainliest!

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.