6, 7, 8, and 9, exclusive. 5, 6, 7, 8, 9, and 10, inclusive.
The least common multiple of 6, 9, 10 and 15 is 90
With certain fractions then experience and observation will enable them to be placed in descending order. With fractions where the order is difficult to assess then they will need to be converted to equivalent fractions having the same denominator. A direct comparison of the numerators will then enable the original fractions to be placed in order. EXAMPLE : Arrange 5/6. 8/9 and 7/8 in descending order. The Lowest Common Multiple of 6, 8 and 9 is 72. This is the new common denominator. 5/6 is equivalent to 5x12/6x12 = 60/72 : 8/9 is equivalent to 8x8/9x8 = 64/72 : 7/8 is equivalent to 7x9/8x9 = 63/72. Therefore the descending order is 64/72,63/72,60/72 or 8/9, 7/8, 5/6
The first 5 composite numbers are 4, 6, 8, 9, and 10. 4 + 6 + 8 + 9 + 10 = 37, so their average is 37/5, or 7.4.
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, and 90. The common factors are 1, 2, 3, 6, 9, and 18.
The Least Common Multiple (LCM) for 5 6 8 9 is 360.
Least Common Multiple (LCM) for6 8 5 9is360
Average = (8 + 9 + 5 + 6)/4 = 7Average = (8 + 9 + 5 + 6)/4 = 7Average = (8 + 9 + 5 + 6)/4 = 7Average = (8 + 9 + 5 + 6)/4 = 7
8/9, 5/12, 6/7
5, 6, 8, and 9 share no common factors aside from 1.
3 9 7 8 4 5 6
5 -5 6 7 -4 5 -5 6 -6 -7 -9 -6 -7 7 -8 8 5 -5 6 7 -8 8 -9 6 6 8 -8 6 8 -8 6 -9 8 -8 7 This is the Indiana Jones Theme for diatonic harmonica
It works out as: 9 -6 +5 = 8
5+7+6+3+6+9+5-6+9-7+8+6+8+6+7=72 == ==
(6 + 5 - 8)*3 = 9
(8/9) + (5/6)
LCM(6, 8, 9) = 72.