Ratio Flashcards
1
Q
Key facts about ratios
A
The order of the numbers have to follow the orders of the words
E.G. 1:4 and 4:1 are not the same
2
Q
How do you change a ratio into a fraction?
A
- keep the first number for the numerator
- add both the numbers for the denominator
E.G. 3:5 = 3/8
3
Q
How do you simplify a ratio?
A
Find a number the two numbers go into and divide them by it
4
Q
How do you divide a ratio into an amount?
A
Divide £700 into the ratio 5:3:2 1. add the ratio = 5 + 3 + 2 = 10 2. divide 10 into 700 = 700/10 = 70 3. times the ratio numbers by 70 = 5 x 70 = 350 3 x 70 = 210 2 x 70 = 140
350:210:140