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Find the LCM or LCD.
49
56
15
4090
7590
1890
5 =
9 =
6 =
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90
9, 18, 27, 36, 45, 54, 63, 72, 81, 90
6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90
Compare the numerators.
4. Using PatternsOrder the fractions from Least to greatest.
23
29
27
25
, , , 29
27
25
23
, , ,
For fraction with the same numerators,
the bigger the denominator,
the smaller the value of that fraction.
4. Using Cross-ProductsDetermine the cross-product of the fraction.Compare the products.
49
56
The numerator that yields the bigger product is greater.
24 45
15
49
9 20
15
56
6 25
Order from greatest to least:
49
56
15
, ,
5. Mixed NumbersOrder 5 5/6, 5 ¾ , 5 7/8 from greatest to least.
Compare the whole number Find the LCD and change them to similar fractions.
5634
78
=
=
=
20241824
2124
The fraction that yields the greatest numerator is the greatest
55653
457
8
Order from greatest to least:
Exercises:
Order the fractions in descending order:
3 34
1. 3 58
3 12
6 34
6 23
7 1 10
1 26
1 36
1 46
2.
3.
4 27
4 37
4 57
4.
1 24
1 36
1 12
5.
What are the different ways of ordering fractions?
1)Using Fraction Sense2)Visual Reasoning3)Renaming to Like Fraction4)Using Patterns5)Using Cross-Products6)Mixed Number
Read and Solve.
Perry helped his father do repair work in the yard for 1 ¼ hours, 1 ½ hours in the house, and 1 1/6
hours in the garage. What activity does Perry spend the most time?
least time?Answer:
Perry spend most time in the house.
Perry spend least time in the garage.
Evaluation:
Arrange the fraction in ascending order:
25
13
48
1. , ,
8 14
5 25
7 12
, ,2.
8 18
2 18
6 18
,3.
4. 58
,
, ,34
23
5. 34
, ,23
59
=
=
=
=
=
48
25
13
, ,
5 25
7 12
8 14
, ,
2 18
6 18
8 18
, ,
58
23
34
, ,
59
23
34
, ,
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