Finding a Common Denominator to Compare Fractions
Authored by Anthony Clark
Mathematics
4th Grade
CCSS covered
Used 1+ times
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20 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
LCM is helpful when (2 answers)
reducing a fraction to its simplest form
finding a common denominator to compare fractions
finding a common denominator to add/subtract fractions
reducing a mixed fraction to improper
2.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Check off everything you need to do before adding/ subtracting fractions:
find the gcf of all fractions
find the LCM of all denominators
find the LCM of all numerators
make whole numbers over 1
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Check all fraction operations that required common denominators:
addition
subtraction
multiplication
division
comparing fractions
Tags
CCSS.7.NS.A.1C
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Finding common denominators is one way to compare two fractions.
TRUE
FALSE
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tomas is comparing the fractions 1/3 and 3/4. He rewrites the fractions using a common denominator. His work was all correct. Which shows Tomas's comparison?
4/12 < 9/12
4/12 > 9/12
4/12 = 9/12
4/12 < 6/12
Tags
CCSS.3.NF.A.3D
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What number would you use as the common denominator?
40
20
5
10
Tags
CCSS.7.NS.A.1C
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Choose a common denominator for the fractions below.
4/7 and 3/5
12
14
35
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