1. = 2 (1/4 + x) = 1/2 + 2x
2. = (3y - 2)/ 3 / (5y+ 1) / 5
= (3y - 2)/ 3 * 5 / (5y + 1)
= 15 / (3y - 2)(5y + 1)
= 15 / 15y^2 - 7y - 2)
3. = (a + bc) / b * b / a - bc
= (a + bc) / (a - bc)
4. = (2a + 1) / a * a / (2 - a^2)
= (2a + 1) / (2 - a^2)
5. = (3x +2x) / 6 * 4 / x
= 5x / 6 * 4 / x
= 5*4 / 6
= 10 / 3
