Mathorio
Answer key
Comparing Mixed Numbers
Show your work for each problem.
- 1.Which symbol correctly compares and ?
- a)
- b)
- c)Cannot be determined
- d)
Answer:
because 5 whole units is more than 4 whole units. The fractional parts don't matter when the whole parts are different.
- 2.Which mixed number is smaller: or ?
- a)
- b)
- c)They are equal
- d)Cannot compare
Answer:
is smaller because the whole parts are equal, so we compare fractions: (a quarter is less than a half).
- 3.Compare and . Enter , , or to complete: ___
Answer: <
because . Even though , the whole number part determines the comparison when they differ.
- 4.Which is greater: or ? Enter the greater number.
Answer: 4 2/3
is greater because the whole parts are equal (4), and .
- 5.Which is greater: or ?
- a)They are equal
- b)
- c)
- d)Cannot compare
Answer:
because , and .
- 6.Compare and . Enter , , or .
Answer: <
because and .
- 7.Which is smaller: or ?
- a)
- b)
- c)Cannot determine
- d)They are equal
Answer:
is smaller because , and .
- 8.Compare and using common denominators.
Answer: <
- What are the whole parts of both numbers? 2
- What is the LCD of 3 and 8? 24
- Convert to 24ths: 8/24
- Convert to 24ths: 9/24
- Which is greater: or ? 9/24
- 9.Convert to an improper fraction.
Answer: 17/5
- What is the whole number part? 3
- What is the denominator? 5
- Multiply: ? 15
- Add the numerator: ? 17
- Write as improper fraction (keep same denominator): 17/5
- 10.A recipe needs cups of flour. You have cups. Do you have enough? Enter yes or no.
Answer: no
No, you don't have enough. because and , and .
- 11.Order from least to greatest: , ,
Answer: 2 1/4, 2 1/3, 2 2/6
- Are the whole parts all equal? yes
- Simplify : 1/3
- What is the LCD of 4, 3, and 3? 12
- Convert to 12ths: 3/12
- Convert to 12ths: 4/12
- Which is smallest: or ? 3/12
- 12.Which list shows the mixed numbers in order from greatest to least?
- a), ,
- b), ,
- c), ,
- d), ,
Answer: , ,
Converting to 12ths: , , . From greatest to least: , so , , .
- 13.Compare and by converting to improper fractions.
Answer: >
- Convert to improper fraction: 15/8
- Convert to improper fraction: 11/6
- What is the LCD of 8 and 6? 24
- Convert to 24ths: 45/24
- Convert to 24ths: 44/24
- Which is greater: or ? 45/24
- 14.Runner A finished in minutes. Runner B finished in minutes. Who was faster? Enter A or B.
Answer: A
Runner A was faster. and . Since , we have . Less time = faster!
- 15.Order these four mixed numbers from least to greatest: , , ,
Answer: 5 5/12, 5 1/2, 5 2/3, 5 3/4
- Are all whole parts equal? yes
- What is the LCD of 2, 3, 4, and 12? 12
- Convert to 12ths: 6/12
- Convert to 12ths: 8/12
- Convert to 12ths: 9/12
- Order the numerators from smallest to largest: 5, 6, 8, 9 5, 6, 8, 9
- 16.Is greater than, less than, or equal to ?
- a)Less than ()
- b)Greater than ()
- c)Equal to ()
- d)Cannot compare
Answer: Less than ()
because 6 is the same as , and . Adding any positive fraction makes the number larger.