please i have lots of homework and have 2 leav 4 work in a little while can sum 1 pl help me?
2006-10-30 04:51:13 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
You multilpy the whole number by the denominator, and add the numerator.
e.g. 4 and 3/4 = 4 x 4 =16, + 3 = 19/4 (The denominator stays the same)
10 and 2/5 = 10 x 5 = 50, +2 = 52/5
Get it?
To change them back again, you find out how many times the denmiator goes into the numerator, that's the whole number, and the remainder is then used as the numerator.
e.g. 23/5 5 goes into 20 4 times and there are 3 left over, so it will be 4 and 3/5.
2006-10-30 04:53:56 · answer #1 · answered by Funky Little Spacegirl 6 · 6⤊ 0⤋
Take the denominator (number on the bottom of the fraction), multiply by the whole number, and then add the numerator of the fraction (number on top). Examples:
6 3/4 = 4 X 6 + 3 = 27/4
7 1/8 = 8 x 7 +1 = 57/8
1 1/2 = 2 x 1 + 1 = 3/2
Good luck
2006-10-30 05:00:16 · answer #2 · answered by Doug R 5 · 1⤊ 0⤋
"Top-heavy fractions" as you called them are actually called "improper fractions". The number on top is bigger than the number on bottom. An easy way to do this is to multiply the whole number part of the mixed number by the bottom number in the fraction, then add the top number of the fraction to the multipication answer, then put that answer over the bottom number again.
5 1/4 is a proper fraction.
5 x 4 = 20 (the number of times the bottom number goes into the whole number)
20+1=21
21/4 is an improper ("top heavy") fraction that equals 5 1/4.
2006-10-30 05:02:43 · answer #3 · answered by Richard H 7 · 1⤊ 0⤋
multiply the coefficient (big number) by the denominator
add to the top, and keep the denominator the same
for example: 4 1/2 (four and a half)
4*2 = 8 + 1 = 9
9/2 !
2006-10-30 05:00:09 · answer #4 · answered by sasmallworld 6 · 2⤊ 0⤋
multiply denominator by the whole number.... then add the numerator to get the final sum ....
example.... 2 & 1/5 = (5*2+1)/ 5 = 11/5
2006-10-30 05:02:15 · answer #5 · answered by Brian D 5 · 1⤊ 0⤋
multiply the Whole # and denominator
then add numerator but keep denominator the same as it was.
2 3/4= 11/4 (2*4=8) then add the numerator...
2006-10-30 05:03:58 · answer #6 · answered by wannaBluvd 2 · 1⤊ 0⤋
divide by 2, take the ratio of 1/4 part of the denominator and multiply those two.
2006-10-30 04:53:23 · answer #7 · answered by morts 1 · 0⤊ 1⤋