Ngày tải lên :
02/11/2013, 18:20
... shared by 28 and 21.
Practice Question
What are the common factors of 48 and 36?
a. 1, 2, and 3
b. 1, 2, 3, and 6
c. 1, 2, 3, 6, and 12
d. 1, 2, 3, 6, 8, and 12
e. 1, 2, 3, 4, 6, 8, and 12
Answer
c. ... 7, 14, and 28.
The factors of 21 are 1, 3, 7, and 21.
The common factors of 28 and 21 are therefore 1 and 7 because they are factors of both 28 and 21.
The greatest common factor of 28 and 21 ... c, 34%, is greater than 28% and less than 38%.
Graphs and Tables
The SAT includes questions that test your ability to analyze graphs and tables. Always read graphs and tables care-
fully before...