Download presentation

Presentation is loading. Please wait.

Published byMiranda Houston Modified over 8 years ago

1
5-5 Multiplying Mixed Numbers Learn to multiply mixed numbers.

2
5-5 Multiplying Mixed Numbers To write a mixed number as an improper fraction, start with the whole number, multiply by the denominator, and add the numerator. Use the same denominator. Remember! 1 5 __ 1 1 5 + 1 5 _________ 6 5 __ = =

3
5-5 Multiplying Mixed Numbers Additional Example 1A: Multiplying Fractions and Mixed Numbers Multiply. Write each answer in simplest form. 1 1 4 __ 1 3 Write 1 as an improper fraction. 1 = 4 3 __ 1 3 1 3 1 4 4 3 1 4 4 3 _____ Multiply numerators. Multiply denominators. 4 12 __ 1 3 Write the answer in simplest form.

4
5-5 Multiplying Mixed Numbers Additional Example 1B: Multiplying Fractions and Mixed Numbers Multiply. Write each answer in simplest form. 3 1 2 __ 4 5 Write 3 as an improper fraction. 3 = 7 2 __ 1 2 1 2 7 2 4 5 7 4 2 5 _____ Multiply numerators. Multiply denominators. 28 10 __ 14 5 __ Write the answer in simplest form. You can write the answer as a mixed number. 4 5 __ = 2

5
5-5 Multiplying Mixed Numbers Additional Example 1C: Multiplying Fractions and Mixed Numbers Multiply. Write each answer in simplest form. 2 12 13 __ 3 8 Write 2 as an improper fraction. 2 = 19 8 __ 3 8 3 8 12 13 __ 19 8 __ 3 19 13 2 ______ Use the GCF to simplify before multiplying. 57 26 __ You can write the answer as a mixed number. 5 26 __ = 2 3 2 12 13 __ 19 8 __

6
5-5 Multiplying Mixed Numbers Check It Out: Example 1A Multiply. Write each answer in simplest form. 1 1 9 __ 1 2 Write 1 as an improper fraction. 1 = 3 2 __ 1 2 1 2 1 9 3 2 1 3 9 2 _____ Multiply numerators. Multiply denominators. 3 18 __ 1 6 Write the answer in simplest form.

7
5-5 Multiplying Mixed Numbers Check It Out: Example 1B Multiply. Write each answer in simplest form. 2 2 3 __ 5 6 Write 2 as an improper fraction. 2 = 8 3 __ 2 3 2 3 8 3 5 6 8 5 3 6 _____ Multiply numerators. Multiply denominators. 40 18 __ 20 9 __ Write the answer in simplest form. You can write the answer as a mixed number. 2 9 __ = 2

8
5-5 Multiplying Mixed Numbers Check It Out: Example 1C Multiply. Write each answer in simplest form. 3 14 15 __ 2 7 Write 3 as an improper fraction. 3 = 23 7 __ 2 7 2 7 14 15 __ 23 7 __ 2 23 15 1 ______ Use the GCF to simplify before multiplying. 46 15 __ You can write the answer as a mixed number. 1 15 __ = 3 2 1 14 15 __ 23 7 __

9
5-5 Multiplying Mixed Numbers You can estimate the product to see whether your answer is reasonable. Remember!

10
5-5 Multiplying Mixed Numbers Additional Example 2A: Multiplying Mixed Numbers Find each product. Write the answer in simplest form. 1 2 2 3 __ 1 7 5 3 15 7 __ 5 15 3 7 ______ Multiply numerators. Multiply denominators. 75 21 __ 12 21 __ You can write the improper fraction as a mixed number. Write the mixed numbers as improper fractions. 1 = 2 = 5 3 __ 15 7 __ 2 3 1 7 3 Simplify. 4 7 __ 3

11
5-5 Multiplying Mixed Numbers Additional Example 2B: Multiplying Mixed Numbers Find each product. Write the answer in simplest form. 1 2 3 8 __ 2 5 11 8 __ 12 5 __ 11 3 2 5 ______ Use the GCF to simply before multiplying. 33 10 __ Multiply numerators. Multiply denominators. Write the mixed numbers as improper fractions. 1 = 2 = 11 8 __ 12 5 __ 3 8 2 5 Simplify. 3 10 __ 3 11 8 __ 12 5 __ 3 2

12
5-5 Multiplying Mixed Numbers Check It Out: Example 2A Find each product. Write the answer in simplest form. 1 2 3 4 __ 1 6 7 4 13 6 __ 7 13 4 6 ______ Multiply numerators. Multiply denominators. 91 24 __ 19 24 __ You can write the improper fraction as a mixed number. Write the mixed numbers as improper fractions. 1 = 2 = 7 4 __ 13 6 __ 3 4 1 6 3

13
5-5 Multiplying Mixed Numbers Check It Out: Example 2B Find each product. Write the answer in simplest form. 1 3 2 9 __ 3 5 11 9 __ 18 5 __ 11 2 1 5 ______ Use the GCF to simply before multiplying. 22 5 __ Multiply numerators. Multiply denominators. Write the mixed numbers as improper fractions. 1 =. 3 = 11 9 __ 18 5 __ 2 9 3 5 Simplify. 2 5 __ 4 11 9 __ 18 5 __ 2 1

Similar presentations

© 2024 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google