The top number of a fraction is called the:
Numerator
1/3 * 1/4
1/12
2a/3 * 5/6a
5/9
2/3 divided by 4/5
5/6
9z/20 divided by 2/9
81z/40
A number that goes into another number evenly is called a:
Factor
7/8 * 4/21
1/6
3a^2 * 1/4
3a^2/4
1/8 divided by 3/4
1/6
3/y^2 divided by 9/y^3
y/3
A number whose only factors are one and itself is called a:
Prime number
3/5 * 2/9
2/15
-17y/20 * 4/5y
-17/25
5 divided by 4/9
45/4 OR 11 1/4
-3x divided by x^2/12
-36/x
When a composite number is written as a product of prime numbers, it is called:
Prime factorization
5/6 * 9
15/2 Or 7 1/2
ac/b *b^3/a^2c
b^2/a
3/8 divided by 6
1/16
-7z/8 divided by 6z^2
-7/48z
A number that has factors other than one and itself is called a:
Composite number
3/10 * 4/9
2/15
17y^2/24x * 18x/15xy
17y/20x
3/8 divided by 2/3
9/16
245ab/1 divided by -385a^2b^3/1
-7/11ab^2