1 / 6

Fractions

Fractions. Multiples & Least Common Denominators. By Rosi Barron. <--- To Teacher Page. Fifth Grade Fractions: Multiples & Least Common Denominators Tips: -Teachers, please read through the whole presentation prior to the activity.

wren
Download Presentation

Fractions

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. Fractions Multiples & Least Common Denominators By Rosi Barron <--- To Teacher Page

  2. Fifth Grade Fractions: Multiples & Least Common Denominators • Tips: • -Teachers, please read through the whole presentation prior to the activity. • -Each activity is meant to be used in addition to your classroom teaching. • -Each activity includes a journal component. • OBJECTIVE: • TSW list multiples to utilize fractions with Least Common Denominators. TEACHER PAGE

  3. LCD (Least Common Denominator) is the smallest common multiple of two or more denominators. EXAMPLE: The LCD for 1 and 5 is 12. 4 6 Follow these steps: Step 1: Find the common multiples of your denominators. 4: 4x1=4 4x2=8 4x3=12 4x4=16 4x5=20 4x6=24 4x7=28 6: 6x1=6 6x2=12 6x3=18 6x4=24 6x5=30 6x6=36 6x7=42 What is the smallest common multiple OR the least common multiple, the LCM? Click here to find out---->

  4. Is this what you chose? Step 1: Find the common multiples of your denominators. 4: 4x1=4 4x2=8 4x3=12 4x4=16 4x5=20 4x6=24 4x7=28 6: 6x1=6 6x2=12 6x3=18 6x4=24 6x5=30 6x6=36 6x7=42 YOU ARE CORRECT! Click here to go to step 2 ------>

  5. Step 2: Use the least common multiple as the least common denominator, or LCD. 1 x = 1 x = 6 x = 12 (LCD) 6 x 2 = 12 (LCD) 3 x = 3 x = 4 x = 12 (LCD) 4 x 3 = 12 (LCD) 1 x 2 = 2 1 2 6 x 2 = 12 6 12 (LCD) 3 x 3 = 9 3 9 4 x 3 = 12 4 12 (LCD) Fill in the blanks-----> = = Click here to see what you can do now ----->

  6. Compare: 1/6 = OR < OR > 3/4 with LCD 1/6 = 2/12 and 3/4 = 9/12 2/12 < 9/12 YOU CAN Add: 1/6 + 3/4 = ___ with LCD 1/6 = 2/12 and 3/4 = 9/12 2/12 + 9/12 =11/12 Journal what you just reviewed ---->

More Related