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Ratio Equations
Number Families: simple OR in, out, and end up
Which is larger? Starting value or ending value?
Converting Fractions to Decimals to Mixed Numbers
Simplifying Fractions with Prime Factors
100
The ratios of workers to machines is 3 to 8. If there are 30 workers, how many machines are there?
What is 80 machines? *Ln 36, part 7, a
100
The pool is 25 feet wider than the deck. If the deck is 18 feet wide, how many feet wide is the pool?
What is 43 feet? *Ln 36, part 7, b
100
a) Copy and work the problem. b) Circle the value you end up with if it's more than the value you start with. 1/8 X 1/2=
a) What is 8/2? b) The fraction value you end up with should not be circled because it is less than the value you start with. *Ln 36, part 1, a
100
Rewrite the decimal as a fraction. 3.04
What is 304/100
100
Copy the fraction. Show prime factors. Write the simplified fraction. 42/6
What is 42/6=2x3x7 = 7 2x3 *Ln 38, part 3, a
200
The ratio of fish to frogs in a pond is 9 to 8. If there are 72 fish, how many frogs are there?
What are 64 frogs? *Ln 38, part 8, c
200
Pile A contains 136 fewer bricks than pile B. Pile B has 1345 bricks. How many bricks are in pile A.
What is 1209 bricks? *Ln 36, part 7, c
200
a) Copy and work the problem. b) Circle the value you end up with if it's more than the value you start with. 20/5 X 3/2=
a) What is 60/10? b) 60/10 should be circled because it is greater than the value you start with. *Ln 36, part 1, c
200
Rewrite the mixed number as a decimal. 11 3/1000
What is 11.003?
200
Copy the fraction. Show prime factors. Write the simplified fraction. 3/18
What is 3/18= 3 =1/6 2x3x3 *Ln 37, part 3, c
300
Copy each problem. figure out the total for the little number families. Then work the problem for the main number family arrow. end up out in 58 92 107 110 75 ---------------------------------->
What is end up equals 112? *Ln 38, part 6, b
300
a) Copy and work the problem. b) Circle the starting value or the ending value to show which is larger. 5/1 X 7/5=
a) What is 35/5? b) The ending value should be circled because it is larger than the starting value.
300
Rewrite the mixed number as a fraction. 5 15/100
What is 515/100?
400
There are 5 tan dogs for every 4 white dogs. If there are 48 white dogs, how many tan dogs are there?
What are 60 tan dogs? *Ln 39, part 9, c
400
Copy each problem. figure out the total for the little number families. Then work the problem for the main number family arrow. end up out in 84 25 104 ---------------------------------->
What is in equals 213? *Ln 38, part 6, a
400
a) Copy and work the problem. b) Circle the starting value or the ending value to show which is larger. 3/7 X 6/6=
a) What is 18/42? b) Neither the starting value nor the ending value should be circled because the fraction we're multiplying by is equal to 1.
400
Convert the mixed number to a fraction. 3 9/100
What is 309/100?
400
Copy the fraction. Show prime factors. Write the simplified fraction. 12/8
What is 12/8= 2x2x3 =3/2 2x2x2 *Ln 37, part 3, b
500
There are 500 rainbow unicorns for every 9 little yellow ducks. If there are 36 little yellow ducks, how many rainbow unicorns are there?
What are 2000 rainbow unicorns?
500
Copy each problem. figure out the total for the little number families. Then work the problem for the main number family arrow. end up out in 95 214 68 -------------------------------->
What is end up equals 187? *Ln 38, part 6, c
500
a) Copy and work the problem. b) Circle the starting value or the ending value to show which is larger. 2/3 X 4/9=
a) What is 8/27? b) The value you start with should be circled because it is larger than the value we end with.
500
Convert the decimal to a fraction and a mixed number. 8.07
What is 807/100 for the fraction and 8 7/100 for the mixed number?
500
Copy the fraction. Show prime factors. Write the simplified fraction. 24/4
What is 24/4=2x2x2x3 = 6 2x2 *Ln 38, part 3, e