Lesson 36
Find the common prime factors between:
84 and 126= 42
81 and 108= 40.5
42, 70, and 98= 21,35,54
33, 55, 77, and 121= 16.5,25.5,35.5,60.5
Lesson 37
Find the greatest common factor between:
16, 24, and 40= 8,12,20
60, 90, and 120= 30,45, 60
72, 108, 144, and 180= 36, 54, 72, 90
78 and 130 38, 60.5
Lesson 38
Find the least common multiple by listing out the multiples (first method)
12 and 8= 6, 4.
7 and 35= 3.5, 20.
Find the least common multiples using the prime factorization method (second method)
50 and 45= 25, 22.5
24 and 16= 12, 8.
12, 22, and 32= 6, 11, 16.
Assignment
Lesson 39
(25×5)/5= 25
(37×15)/5= 111
(15×8)/4= 30
(36×5)/15= 15
Lesson Learning 