Adding and Subtracting Fractions
*To add or subtract fractions, you must first find the lowest common denominator (LCD). The LCD is the smallest number that both denominators can divide into evenly. You can find the LCD by listing the multiples of each denominator. Afterward you create equivalent fractions, which you can then add/subtract.
See the example below:
Ex. multiples of 6 – 6, 12, 18 multiples of 4 – 4, 8, 12 LCD=12 *Always ask yourself if you can simplify.
See the example below:
Ex. multiples of 6 – 6, 12, 18 multiples of 4 – 4, 8, 12 LCD=12 *Always ask yourself if you can simplify.