A great tip my math intervention teacher gave me was to factor out both the denominator (top) and the numerator (bottom) for example 20 factors out to 2*2*5 and 94 factors out to 2*47 you can cross out 1 two in the top and in the bottom or "big ones" so you'd end up with 2*5/47 not you just multiply the top 2*5= 10 and keep the 47 as your denominator so your answer is 10/ 47 hope that helps