I can't remember how to do any of these. Anyone got some good websites they can recommend?
2006-08-27 09:02:41 · 7 answers · asked by VNCGirl 3 in Education & Reference ➔ Homework Help
TO add or subtract fractions, you MUST make the denominators equal:
1/2 + 3/4 = ?
2/4 + 3/4 = 5/4
Multiplying fractions is easy, just multiply the tops and bottoms
1/2 * 2/3 = 2/6
Dividing fractions is easy, just reverse the divisor (the fraction in the denominator of the expression) and then multiply:
(1/1) / (1/2) = (1/1) * (2/1) = 2
2006-08-27 09:09:16 · answer #1 · answered by Anonymous · 0⤊ 0⤋
http://www.mathleague.com/help/fractions/fractions.htm
This is good with:
Prime numbers
Greatest common factor
Least common multiple
What is a fraction?
Equivalent fractions
Comparing fractions
Converting and reducing fractions
Lowest terms
Improper fractions
Mixed numbers
Converting mixed numbers to improper fractions
Converting improper fractions to mixed numbers
Writing a fraction as a decimal
Rounding a fraction to the nearest hundredth
Adding and subtracting fractions
Adding and subtracting mixed numbers
Multiplying fractions and whole numbers
Multiplying fractions and fractions
Multiplying mixed numbers
Reciprocal
Dividing fractions
Dividing mixed numbers
Simplifying complex fractions
Repeating decimals
2006-08-27 16:08:57 · answer #2 · answered by eaglefeather831 2 · 0⤊ 0⤋
when adding or subtracting, you need to find the least common denominator. if you can't figure out what it is, just multiply both denominators together and you will get a working number. then multiply the top numbers to keep it even. when mutiplying, just do the top numbers together then the bottom. when dividing, mutliply by the recipricol of one of the fractions. good luck! www.quizhub.org
2006-08-27 16:06:40 · answer #3 · answered by advicemom 4 · 0⤊ 0⤋
How about http://www.aaamath.com/fra.html. They have all you request plus more (comparing fractions, converting fractions, divisibility rules, etc.)
2006-08-27 16:06:49 · answer #4 · answered by maegical 4 · 0⤊ 1⤋
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2006-08-27 16:13:33 · answer #5 · answered by Anonymous · 0⤊ 0⤋
i have one try http://www.cosmeo.com it's great for homework and problems like yours! good luck!
2006-08-27 16:07:26 · answer #6 · answered by The tiger :] 2 · 0⤊ 0⤋
yea! go to www.mathisfun.com it has everything. and has helpful homework tips too.
2006-08-27 16:05:13 · answer #7 · answered by C♥ 4 · 0⤊ 0⤋