Ok see for doing percentage it is very easy just divide it by the main number I mean see if there is a food price 10 dollars and it has 20%off then u divide 20/10x100 u divide it by the actual number and then multiply it by 100 so the answer of my 20/10x100 is 10x20/100 ok so the answer is 2. The price is 2
1/2, 6/12, 9,/18, and 15/30
4/5 of 300= 80% of 300= 240
30% of 450= 135
30% of 450<4/5 of 300
