Adding Fractions

Question 1

What needs to stay the same when we add fractions?
A) The numerator
B) The denominator

Answer 1

B) The denominator

Question 2

How do we work out ⅓ + ⅓?

Answer 2

The denominators stay the same (3) and we add the numerators (1+1)
So ⅓ + ⅓ = ⅔

Question 3

How do we work out ⅕ + ⅗?

Answer 3

The denominators stay the same (5) and we add the numerators (1+3)
So ⅕ + ⅗ = ⅘

Question 4

Which of these is SMALLER?
A) 1/5 or
B) 3/10

Answer 4

1/5
because….. 1/5 is the same as 2/10
Therefore, 3/10 is larger than 2/10

Question 5

How do we work out ⅞ + ⅝?

Answer 5

The denominators stay the same (8) and we add the numerators (12) However 12/8 is an IMPROPER fraction
so it need to be written as 1 & 4/8 or 1 & 1/2

Question 6

What is an improper fraction?

Answer 6

A fraction where the numerator is larger than the denomintor

Question 7

How do we work out ⅔ + ⅕?

Answer 7

Find the lowest common denominator (IE 3 x 5 = 15)
2/3 is equivalent to 10/15 (2x5 = 10 & 3x5 = 15)
1/5 is equivalent to 3/15 (1x3 = 3 & 5x3 = 15)

10/15 + 3/15 = 13/15

Question 8

What are the two parts of a fraction called?

Answer 8

The numerator and the denominator

Question 9

What is a fraction?

Answer 9

Part of a whole number expressed with a numerator (top number) over a denominator (bottom number)

Question 10

How do we work out ⅓ + ⅙?

Answer 10

Make the denominator the same.
3 goes into 6 so 1/3 becomes 2/6
2/6 + 1/6 = 3/6

Question 11

Which of these is LARGER?
A) ⅘ or
B) ⅚

Answer 11

5/6 because...
Find the common denominator
5 x 6 = 30
4/5 is the same as 24/30 (4x6 and 5x6)
5/6 is the same as 25/30 (5x4 and 6x4)
25/30 is larger than 24/30

Question 12

What do we add together when adding fractions?

Answer 12

The Numerator

Question 13

What are ‘like’ fractions?

Answer 13

Fractions that have the same denominator

Question 14

What are ‘unlike’ fractions?

Answer 14

Fractions that have different denominators