How do you work out fractions converting in to decimals and percent

Divide the denominator by 1 (decimal) or 100 (percent) and X by the numerator.

Again (as I have encouraged most people on this website), I urge you to spend a lot of time working on mental maths and general logical capabilities. Spend time on it while you're young and you'll be a genius when you're older - 'natural intelligence' is commonly determined by the person's psychological perseverance - and that doesn't mean working hard endlessly, more specifically loving yourself in a manner that you strive to make yourself more intelligent