exam Maths Puzzle Numerical Ability

Please help me SIMPLIFY this solution:

(a/b - 1/ab) OVER (1/b + 1/ab)

Read Solution (Total 0)

exam Other Question

how do you make 7 triangles out of the letter M Adult tickets for a play cost $17 and child tickets cost $10. If there were 33 people at a performance and the theater collected $421 from thicket sales, how many children attended the play?