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Here's an idea: Why not simply draw an ordinary 3 x 3 magic square with the
numbers 1 through 9, then in each cell, draw a line under the number and add
a denominator of 10. Bingo. You have a magic square comprised of the fractions
1/10 through 9/10, and the universal sum is 1.5 instead of 15.
Something along those lines.
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Why do you need to learn fractions?
You need to learn fractions because they show up in every day life. You can for example say that someone can half of your lunch.
Why do you need rational and irrational numbers '?
Because rational numbers are not closed under fractional exponents. For example, the square root of 2 is not a rational number. Nor is a cube root of 2, or a square root of 5, etc. And in case you are wondering about the relevance of the square root of 2, it is the length of the diagonal of a unit square - and so it is the longest length that can fit inside a 1x1 square.
What are a score or more facts about friendly fractions?
1 Fractions are parts of whole numbers or integers 2 Fractions have numerators above their denominators 3 Fractions have a solidus line that separates numerator from denominator 4 Fractions can be common as for example: 3/4 5 Fractions can be improper or 'top heavy' as for example: 22/7 6 Fractions can form part of a mixed number as for example: 3 and 1/7 7 Fractions can be converted into percentages as for example: 1/2 = 50% 8 Fractions can be converted into decimals as for example: 3/4 = 0.75 9 Fractions can be equivalent: 5/8 = 10/16 10 Fractions need a common denominator when added or subtracted 11 Fractions can easily be multiplied or divided 12 Fractions are rational numbers 13 Fractions can never ever be irrational numbers 14 Fractions can be turned into improper fractions from mixed numbers 15 Fractions are used in algebra and trigonometry 16 Fractions are used in converting Celsius into Fahrenheit 17 Fractions are turned into decimals by dividing denominator into numerator 18 Fractions must be eliminated when solving algebra equations 19 Fractions can be the solutions of quadratic equations 20 Fractions can be changed into scientific notation: 1/5000 = 2.0*10^-4 21 Fractions are in their lowest terms when their HCF is one
What are a score or more fundamental facts about fractions?
1 Fractions are parts of whole numbers or integers2 Fractions have numerators placed above denominators3 Fractions have a solidus line that separates numerator from the denominator4 Fractions can be common as for example 3/45 Fractions can be improper or 'top heavy' as for example 22/76 Fractions can form part of a mixed number as for example 3 and 1/77 Fractions can be converted into percentages: 3/4 = 75%8 Fractions can be converted into decimals: 1/2 = 0.59 Fractions can be equivalent: 5/8 = 10/1610 Fractions need a common denominator when added or subtracted11 Fractions can easily be multiplied and divided12 Fractions are rational numbers13 Fractions can never ever be irrational numbers14 Fractions are turned into decimals by dividing numerator by denominator15 Fractions can be turned into improper fractions from mixed numbers16 Fractions are used in algebra and trigonometry17 Fractions are used when converting Centigrade to Fahrenheit18 Fractions are best eliminated before solving equations19 Fractions can be the solutions of quadratic equations20 Fractions can be changed into scientific notation: 1/5000 = 2.0*10-421 Fractions are in their lowest terms when their HCF is one22 Fractions were once used by the ancient Romans to a limited extent as for example the numeral of S represents 1/2QED
How do you mutiply fraction by fraction?
The numerator (top) of the answer is the product of the numerators of the two fractions. The denominator (bottom) of the answer is the product of the denominators of the two fractions. You may then need to simplify.For example,2/5 * 3/8 = (2*3)/(5*8) = 6/40 = 3/20The numerator (top) of the answer is the product of the numerators of the two fractions. The denominator (bottom) of the answer is the product of the denominators of the two fractions. You may then need to simplify.For example,2/5 * 3/8 = (2*3)/(5*8) = 6/40 = 3/20The numerator (top) of the answer is the product of the numerators of the two fractions. The denominator (bottom) of the answer is the product of the denominators of the two fractions. You may then need to simplify.For example,2/5 * 3/8 = (2*3)/(5*8) = 6/40 = 3/20The numerator (top) of the answer is the product of the numerators of the two fractions. The denominator (bottom) of the answer is the product of the denominators of the two fractions. You may then need to simplify.For example,2/5 * 3/8 = (2*3)/(5*8) = 6/40 = 3/20
