MYTUTOR SUBJECT ANSWERS

337 views

How do I add fractions?

When adding fractions, the denominators(the numbers at the bottom of the fractions) must be the same. If they are already the same, then you simply add the numerators (the numbers at the top of the fraction) together.

For example 2/5+1/5=3/5. Here we have added the numerators 2 and 1 to make 3. The denominators are not added together and remain the same.

If the denominators are not the same, we need to make them the same. This is done by multiplying each of them by a common factor. 

For example, if we had 2/5+1/3 we would need to make the 5 and 3 the same number. This would be done by multiplying the 5 by 3 and the 3 by 5 to make both of the denominators 15. When multiplying the denominators, we also mulitply the numerators by the same number.

So, 2x3=6 and 5x3=15 which gives up 6/15 for the first fraction. Then 1x5=5 and 3x5=15 which gives us 5/15 for the second.

This leave us with 6/15+5/15. We then add the numerators to get 11/15.

Katie  H. 11 Plus Maths tutor, 13 plus  Maths tutor, 11 Plus English ...

1 year ago

Answered by Katie , a 11 Plus Maths tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

189 SUBJECT SPECIALISTS

£18 /hr

Laura K.

Degree: Chemical Engineering (Masters) - Bath University

Subjects offered: Maths, Science+ 3 more

Maths
Science
Physics
Further Mathematics
Chemistry

“Hey there! I am Laura and I am currently studying Chemical Engineering at University of Bath. I am really passionate about Science and I am willing to share my knowledge through tutoring you. My passion and expertise in science can be...”

£18 /hr

Elsa A.

Degree: Communication and Media (Bachelors) - Leeds University

Subjects offered: Maths, Media Studies+ 1 more

Maths
Media Studies
-Personal Statements-

“Hello! My name is Elsa, and I am a 2nd year Communication and Media student at the University of Leeds. I'm originally from Tanzania, and I speak both English and Kiswahili fluently. My previous teaching experience includes my role as ...”

£18 /hr

Ellie B.

Degree: Mathematics (Masters) - York University

Subjects offered: Maths, Physics+ 1 more

Maths
Physics
Further Mathematics

“Hi, my name is Ellie and I am currently studying Mathematics at the University of York. I chose York because I felt a real connection with the teachers, they made maths fun, interesting and easy. That's what I hope to do with all my s...”

MyTutor guarantee

About the author

£18 /hr

Katie H.

Degree: Primary Education (Bachelors) - Durham University

Subjects offered: Maths, English

Maths
English

“I am a Primary Education student at Durham University. I have always had a real passion and love for teaching and hope that my tutorials will instill the same enthusiasm for learning in you, too. I am very patient and friendly. I have b...”

MyTutor guarantee

You may also like...

Other 11 Plus Maths questions

How much would Jodie earn?

What is the average temperature in September?

When a price changes from £15 to £20. By how much percentage has the price changed?

Arrange the following decimals in order of size, from largest to smallest: 0.34, 1.06, 0.3, 0.09

View 11 Plus Maths tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok