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numerators & denominators.Simplify Example;4 1/2x 2 1/3x 3= explain the answer and 2 1/4 x 6 = .

2007-03-12 15:06:07 · 7 answers · asked by gd2beloved 1 in Education & Reference Home Schooling

7 answers

OK, 4 1/2 x 2 1/3 x 3... to rename the mixed numbers as fractions, you multiply the denominator by the integer and then add the numerator: 2 x 4 + 1 = 9 so 4 1/2 becomes 9/2....3 x 2 + 1 = 7 so 2 1/3 becomes 7/3 and 3 becomes 3/1...so we have 9/2 x 7/3 x 3/1 which are in their simplest form so no reducing is needed. Multiply the numerators: 9 x 7 x 3 = 189...multiply the denominators: 2 x 3 x 1 = 6....that gives you 189/6 which can be reduced as such: 3 is a common factor of both numbers... 189 divided by 3 = 63 and 6 divided by 3 = 2, thus the fraction is reduced to 63/2 which becomes the mixed number 31 1/2 because 63 divided by 2 is 31 with a remainder of 1.
2 1/4 x 6 is done in the same fashion....4 x 2 + 1 = 9 so 2 1/4 becomes 9/4 and 6 becomes 6/1 which gives you 9/4 x 6/1...9 x 6 = 54 and 4 x 1 = 4 so the answer in fraction form is 54/4 which can be reduced to 27/2 (because 2 is a common factor...54 divided by 2 = 27 and 4 divided by 2 = 2) which becomes 13 1/2 in mixed number format because 27 divided by 2 is 13 with a remainder of 1.

2007-03-12 15:40:02 · answer #1 · answered by Anonymous · 0 0

According to me answers are as follows....
4 1/2 x 2 1/3 x 3 = 15 1/2
2 1/4 x 6 = 6 3/4

thanks

2007-03-12 15:19:51 · answer #2 · answered by smbhatt 1 · 0 0

4 1/2 becomes 9/2
2 1/3 becomes 7/3
3 becomes 3/1

then multiply all the numerators and denominators
(9*7*3)/(2*3) = 31.5

Similarly
2 1/4 * 6 = 9/4 * 6 = 54/4 = 13.5

2007-03-12 15:18:57 · answer #3 · answered by kinvadave 5 · 0 0

since your multiplying you don't need comon factors just line it up 4 and 1/2 times 2 and1/3 so 4x2=8 then fractions multiply the 1 from 1/3 with the 1 from 1/2 thats 1 then the bottem is 3x4=12 so the first half is 8 1/12 then times 3= 8x3 24 and 1/12

2007-03-12 15:13:32 · answer #4 · answered by broken hearted 2 · 0 0

my brain hurts.... uhh well the answer to first is 30.375 i think, the answer to the secong is 13.5 for sure...

2007-03-12 15:09:57 · answer #5 · answered by Justin W 2 · 0 0

sorry man what???

2007-03-12 15:09:04 · answer #6 · answered by ♥converse♥ 2 · 0 0

?no comprenda?

2007-03-12 15:07:32 · answer #7 · answered by Dancer 2 · 0 0

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