Uploaded by Clint

Multiplying a fraction and a whole number

advertisement
Multiplying fraction by a whole number
Review
Show the following by drawing.
1 5
x N
2 6
Problem
Edrian has Ᵽ20. He spent ¾ of it
to buy taho and some crackers for
recess. How much did Edrian spend
during recess? How much money
has he left?




Who bought taho during recess?
How much money did Edrian had?
Do you eat taho?
Is it Good to our health?
Example:
¾ of 20 = 15
½ of 10 = 5
Find the products of the following cancel before multiplying
whenever possible. How many can you do mentally?
𝟐
𝟏𝟐
 1. 3 x
 2. 8 x
𝟓
x
𝟕
 3.
 4.
𝟑
𝟓
𝟓
𝟔
= _______
= _______
35 = _______
x 15 = ______
Supply the missing number in the box to
make each equation true.
1.
𝟐
𝟓
2. [ ] x
x[ ]= 4
𝟏
𝟑
= 6
 In multiplying a whole number by a fraction:
 Step 1: Multiply the whole number by the numerator
of the fraction to get the numerator of the product.
 Step 2: Copy the denominator of the fraction to get
the denominator of the product.
 Step 3: Express the obtained product in lowest terms.

Always express answers in their lowest terms.
Give the answer.
 1. What is 2/7 of 35?
 2. In a class of 40,2/5 are boys, how many
are girls?
 3. During a sale, Joy paid only 1/2 of the
bag. How much did she pay if the bag
had a marked price of P1000?
Multiply. Write each answer in lowest
term.
1. 14 x
𝟓
𝟔
=
4. What is 𝟏/𝟒 of 80?
5. Find 𝟓/𝟔 of 15
2.
3.
𝟑
𝟕
x 21 =
𝟑
𝟕
x 120 =
Download