Question

Write all proper fractions whose sum of numerator and denominator is 12.
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Answer 1

Answer:

11

1

,

10

2

,

9

3

,

9

4

,

8

4

,

7

5

⇒1+11=12

⇒2+10=12

⇒3+9=12

⇒4+8=12

⇒5+7=12