1 / 6

Multiples: LCM and LCD

Multiples: LCM and LCD. Honors Math – Grade 7. VOCABULARY ALERT. The Least Common Multiple (LCM) is the least nonzero multiple that is common to all of the numbers. A multiple of a number is the product of that number and any whole number. Problem of the Day.

chastity-booker
Download Presentation

Multiples: LCM and LCD

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Multiples: LCM and LCD Honors Math – Grade 7

  2. VOCABULARYALERT The Least Common Multiple (LCM) is the least nonzero multiple that is common to all of the numbers. A multiple of a number is the product of that number and any whole number. Problem of the Day A botanist waters a plant every 4th day and gives it plant food every 6th day. If the botanist gives both water and plant food on April 1, what is the next date in April when the plant will receive both? To find the next date, find the least common multiple (LCM) of 4 and 6. The Prime Factorization of a number can be used to find the LCM of two or more numbers.

  3. To use the prime factorization to find the LCM: • Make a factor tree for each number. • Write each prime factor the greatest number of times it occurs in any of the numbers. • Multiply these factors.. Using Factor Trees to find the LCM. The plant will receive both water and plant food 12 days later, on April 13. Remember, the LCD of two or more fractions is the LCM of the denominators!

  4. Find the LCM.

  5. The LCD is used to rename fractions with unlike denominators.

  6. Find the LCD and rename the set of fractions using the LCD.

More Related