Make the demoninators (bottom numbers) the same by multiplying the top and bottom of one (or both) fractions, then add them as you would with integers.
This is related to the fact that dividing by a number is the same as multiplying with the number's reciprocal.
This is because dividing by a number is the same as multiplying by its reciprocal.
When multiplying fractions, the numerators (top numbers) are multiplied together and put as the numerator over the denominators (bottom numbers) multiplied together.When adding fractions, they must both have the same denominator - the fractions are made into equivalent fractions with a common denominator; then the numerators are added together and put over the same common denominator.In both cases of multiplication and addition, the resulting fractions are reduced to simplest form.
Draw as many rectangles as the whole number you are multiplying by. Then, draw the fraction you are multiplying by in all of the rectangles. Shade in the top number in the fraction [numerator] in your rectangles. Count all the shaded in parts of all your rectangles. Leave the bottom number of your fraction [denominator] the same and put the number you got when you added the shaded parts of the rectangles on top as your denominator of the fraction. That is your answer!
6/18 and 9/27......you can find out equivalent fractions by multiplying the numerator (top number) by the same number as the denominator (bottom number)
That means that two fractions represent the same number. You can obtain equivalent fractions by multiplying top and bottom by the same number. For example, if you multiply top and bottom of "1/2" by 2, you get "2/4" - an equivalent fraction.
Make the demoninators (bottom numbers) the same by multiplying the top and bottom of one (or both) fractions, then add them as you would with integers.
1. Write this as 60/100. 2. Simplify the fraction as much as you can. 3. In the result of step (2), multiply top and bottom by the same number, to get an additional fractions. You can repeat (with the result of step (2)), multiplying top and bottom with different numbers (but always the same number for top and bottom), to get additional equivalent fractions.
Adding and subtracting fractions can ONLY be done if the denominators are the same; then the calculation is done by adding or subtracting the numerators. Multiplying (and dividing) fractions does not require the denominators to be the same. To divide by a fraction the divisor is inverted (the original numerator becomes the new denominator and the original denominator becomes the new numerator) and then the fractions are multiplied. Multiplying fractions is achieved by multiplying the numerators together AND multiplying the denominators together. A whole number is the same as a fraction with the whole number as the numerator and a denominator of 1, so when multiplying by a whole number the denominator is multiplied by 1 (leaving it the same) and the is multiplication is effectively just multiplying the numerator by the whole number.
Because it's the same as multiplying the inverse. Dividing something by one third is the same as multiplying it by three. The number will get larger.
This is related to the fact that dividing by a number is the same as multiplying with the number's reciprocal.
This is because dividing by a number is the same as multiplying by its reciprocal.
yes you do
no you do not
When multiplying fractions, the numerators (top numbers) are multiplied together and put as the numerator over the denominators (bottom numbers) multiplied together.When adding fractions, they must both have the same denominator - the fractions are made into equivalent fractions with a common denominator; then the numerators are added together and put over the same common denominator.In both cases of multiplication and addition, the resulting fractions are reduced to simplest form.
common denominator! Numerator is top # Denominator is bottom #