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.
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.
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?
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
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)
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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