Ratio flashcards
20 practice cards drawn from the Ratio lessons. Tap a card to turn it over. Every answer is checked against the lesson it came from.
Read the Ratio lessons in full →
3 : 1 = 9 : ?
3
from “Ratio”
3 : 2 = 12 : ?
8
from “Ratio”
In 1 : 2, what fraction of the whole is the 1 share?
from “Part-to-Whole Ratios”
In 4 : 5, what fraction of the whole is the 4 share?
from “Part-to-Whole Ratios”
9 : 15 in simplest form
3 : 5
from “Tidying a Ratio”
6 : 8 in simplest form
3 : 4
from “Tidying a Ratio”
In 4 : 2 : 1, how many parts altogether?
7
from “Three-Part Ratios”
In 2 : 3 : 4, how many parts altogether?
9
from “Three-Part Ratios”
A : B = 1 : 2, B : C = 3 : 4. A : B : C?
3 : 6 : 8
from “Combining Two Ratios”
A : B = 3 : 2, B : C = 5 : 4. A : B : C?
15 : 10 : 8
from “Combining Two Ratios”
A 3 by 4 rectangle is scaled by 3. What is the new width?
9
from “Scale Factor”
A 5 by 6 rectangle is scaled by 3. What is the new width?
15
from “Scale Factor”
2 : 2 shares 12. What is one part worth?
3
from “The Unitary Method”
4 : 1 shares 10. What is one part worth?
2
from “The Unitary Method”
2 : 5 with one part worth 5. How much bigger is the larger share?
15
from “Bar Models for Ratio”
2 : 4 with one part worth 2. How much bigger is the larger share?
4
from “Bar Models for Ratio”
In 1 : 4, what percent is the 1 share?
20%
from “Ratio, Fraction, Percent”
In 1 : 3, what percent is the 1 share?
25%
from “Ratio, Fraction, Percent”
36 shared 7 : 2, then a gift makes it 5 : 4. Given?
8
from “Ratios After a Transfer”
48 shared 5 : 1, then a gift makes it 3 : 3. Giver keeps?
24
from “Ratios After a Transfer”