2007-03-12 02:21:10 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
change them all to a common denominator and then decide.
2007-03-12 02:33:00 · answer #1 · answered by al b 5 · 2⤊ 0⤋
A different approach:
First, reduce:
8/20 = 2/5
6/22 = 3/11
The LCM(5, 9, 11, 15) = (3² *5*11)
Calculate and compare the numerators, given the common denominator:
4/15:
(4)(3*11) = 132
2/5:
(2)(9*11) = 190
5/9:
(5)(5*11) = 275
3/11:
(3)(9*5) = 135
As has been shown, 4/15 is the smallest fraction.
2007-03-12 10:09:36 · answer #2 · answered by S. B. 6 · 1⤊ 0⤋
4/15 8/20 6/22 are < 1
4/15 = 8/30
8/30 < 8/20
so 4/15 and 6/22 should be compeared
4/15 = 88/(15*22)
6/22 = 90/(15*22)
so 4/15 is lowest or smallest
2007-03-12 09:29:01 · answer #3 · answered by Mein Hoon Na 7 · 1⤊ 0⤋
To determine which fraction is smaller, cross multiply and compare the products:
4/15 ? 8/20
4*20 ? 8*15
80 ? 120
80 < 120
4/15 < 8/20
4/15 ? 5/9
4*9 ? 5*15
36 ? 75
36 < 75
4/15 < 5/9
4/15 ? 6/22
4*22 ? 6*15
88 ? 90
88 < 90
4/15 is the smallest!
2007-03-12 09:27:21 · answer #4 · answered by Dave 6 · 1⤊ 0⤋
4/15,8/20 and 6/22 are all proper frctions and hene ech is smaller than 1
4/15=0.0888
8/20=0.4000
6/22=0.2727
hence 0,0888 or 4/15 is the smallest
2007-03-12 09:53:10 · answer #5 · answered by alpha 7 · 1⤊ 0⤋
4/15 is the smallest because the answer .266.
2007-03-12 11:48:48 · answer #6 · answered by Anonymous · 1⤊ 0⤋
4 / 15 = 0.266666667
8 / 20 = 0.4
6 / 22 = 0.27272727
4/15 is the smalles fraction
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2007-03-12 10:32:31 · answer #7 · answered by SAMUEL D 7 · 1⤊ 0⤋