Computation
Fractions
Greatest Common Factor (GCF)
Least Common Multiple (LCM)
100
Add carefully! 385 + 637 = ?
1,022
100
Give an equivalent fraction for 3/4.
Possible answers (there could be others) 6/8; 9/12; 12/15; 15/18; etc.
100

What is the Greatest Common Factor (GCF) of 60 and 30?

30

100
What is the Least Common Multiple of 6 and 10?
60
200
Subtract carefully! 8,014 - 3,916 = ?
4,098
200

Reduce the fraction 18/27 to its simplest form.

2/3

200
What is the Greatest Common Factor (GCF) of 20 and 35?
5
200
What is the Least Common Multiple of 20 and 4?
20
300
Multiply carefully! 27 x 8 = ?
216
300

Reduce the fraction 35/40 to its simplest form.

7/8

300
What is the Greatest Common Factor (GCF) of 44 and 33?
11
300
What is the Least Common Multiple of 6 and 8?
24
400
Multiply carefully! 52 x 39 = ?
2,028
400
Give an equivalent fraction for 2/5.
Possible answers (there could be others) 4/10; 6/15; 8/20; 10/25; 12/30; etc.
400
What is the Greatest Common Factor (GCF) of 45 and 63?
9
400
What is the Least Common Multiple of 2,3 and 5?
30
500
Divide carefully! 168 รท 12 = ?
14
500

Multiply these fractions carefully! be sure to give your answer in simplest form. 

3/4 x 2/5 = ?

3/10

500
What is the Greatest Common Factor (GCF) of 48 and 64?
16
500
What is the Least Common Multiple of 2,3, and 9?
18
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