Compare Fractions
6-10
Compare: ^1114 ^1134
To compare fractions with
like denominators,
compare the numerators.
The fraction with the greater
numerator is greater.
You can also use a number
line to compare.
Compare: ^78 ^34
To compare fractions with
unlike denominators:
- Find the least common
denominator (LCD) of the
fractions. - Use the LCD to rename the
fractions as equivalent
fractions with the same
denominator. - Compare the numerators.
You can also use a number line
to compare fractions with unlike
denominators.
So ^78 ^34 .
?
?
0 1
0
14
5
14
11
14
14
14
13
14
11 13 ^1114 ^1134
Remember: Values increase as you move right on a number line.
Values decrease as you move left.
The least common denominator (LCD) of
two or more fractions is the least common
multiple (LCM) of their denominators.
0
8
0
4
2
4
3
4
4
4
4
8
6
8
7
8
8
8
^78 Multiples of 8: 8 , 16, ...
^34 Multiples of 4: 4, 8 , 12, 16, ...
The LCD of ^78 and ^34 is 8.
^34 ? 8 ^34 ^22 ^68
7 6, so ^78 ^34 .
LCM
1.1
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