Asked by john

how to you compare 8 fractions with different denominators including improper fractions?

Answers

Answered by Ms. Sue
Either change them to equivalent decimals or to fractions with the same denominators.

Answered by bobpursley
1. make them the same denominator, or
2. find the decimal equivalents for each.
Answered by john
how do you change them into equivalent decimals and same denominators?
Answered by Ms. Sue
For decimals, divide the numerator by the denominator.

Example: 3/4 = 0.75

For fractions, find a common multiple of the denominators.

Examples: 2, 3, 4, >> the common multiple is 12.

Answered by john
so it's like you do this ->

2,4,6,8,10,12
3,6,9,12,15,18,21
4,8,12,16,20

and one more question, what about the numerators?

like if you're comparing 3/8 to 2/5 the common multiple is 40. the numerators?
Answered by Ms. Sue
Divide the new denominator by the old denominator.

40/5 = 8

Multiply the old denominator by the quotient.

2 * 8 = 16

2/5 = 16/40



Answered by Ms. Sue
http://www.mathsisfun.com/equivalent_fractions.html

Answered by john
so it would be like, 5/8 ? 6/7

8,16,24,32,40,48,56,64
7,14,21,28,35,42,49,56

LCD IS 56

so now i do 56/7=8*6=48 6/7=48/56

56/8=7*5=35 so, 5/8=35/56


5/8 (35/56) < 6/7 (48/56)
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