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Please Help me with this Math Assignment

Please Help me with this Math Assignment-example-1
User Mykaelos
by
8.3k points

2 Answers

6 votes

Explanation:

I am going to show you an example with the first question, and you will apply it on the rest on your own ^^

Step 1:

convert the mixed number fractions into improper fractions:

To do that you need to multiply the whole Number by the denomiator and add it to the numerator.


2(1)/(2)+
1(7)/(8)=
(5)/(2)+
(15)/(8)

Step 2:

Now you want the denominators of both fraction to be equal so that you can add them:


(5x4=20)/(2x4=8) +
(15)/(8)

Step 3:

Add.

=
(20)/(8)+
(15)/(8)

=
(35)/(8)

Step 4:

Turn the improper fraction back to a mixed number fraction:


(35)/(8)=4(3)/(8)

There it is!

Bonus information:

For adding or subtracting fractions, you need a common denominato.

For multiplying fractions you do not need a common denominator, just mutiply the numerators together and the denominators together.

For dividing fraction, you do Not need a common denominator either. Just switch the two parts of the second fraction (so the numerator goes in the place of the denominator and vice versa) and multiply the two fractions!

I really hope this helped ;)

User Abhishek Agrawal
by
7.8k points
1 vote

Explanation:

1- 5/2+15/8

80/16+240/16

320/16

User Qubeuc
by
7.7k points

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