Only number 15 please
2 answers:
Okay, firstly, let's list some multiples of 5 and 8.
5 : 5, 10, 15, 20, 35, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90
8 : 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120
I've emboldened two of the multiples of 5 and 8 that are the exact same in both lists. They are 40 and 80. And the lesser multiple out of the two of them is 40. So we'll be using the number 40 to simplify
.
So let's divide, the numerator before the denominator. 120 ÷ 40 is 3. And 160 ÷ 40 = 4. Simplified, using the numbers we just found, our final answer is
.
5 : 5, 10, 15, 20, 35, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90
8 : 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120
I've emboldened two of the multiples of 5 and 8 that are the exact same in both lists. They are 40 and 80. And the lesser multiple out of the two of them is 40. So we'll be using the number 40 to simplify
So let's divide, the numerator before the denominator. 120 ÷ 40 is 3. And 160 ÷ 40 = 4. Simplified, using the numbers we just found, our final answer is
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Answer:
The simplified form of given expression is 3/5.
Step-by-step explanation:
The given expression is
We need to find the product of two factions using diagram.
For 3/4, draw a box and divide it in 4 equal parts by using vertical lines. The color three parts of it.
For 4/5, draw a box and divide it in 5 equal parts by using horizontal lines. Then color the four parts of it.
Now combined both boxes and shown below.
From the below figure it is clear that
The number of common shaded small boxes = 12
Total number of small boxes = 20
The required fraction is
Cancel out common factor.
Therefore, the simplified form of given expression is 3/5.
