Okay so im amazing at maths but when it comes to fractions i mays well be in primary school again….

Okay so im amazing at maths but when it comes to fractions i mays well be in primary school again. I can barely understand how to add them. Multiplying, Dividing & subtracting fractions is impossible to understand no matter how many times people explain it to me. When the fraction has different denominators or whole numbers then im completely stuffed and hardly even know how to add them!! Please help! I get A’s in Math but this is letting me down, im yr 9 and hopeless without know fractions.