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 10
145
1411
1414
1413
1411 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
80
42
43
44
44
86
87
88
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 .LCM1.18206-2_196-197 10/7/07 11:21 AM Page 196