Page 146 - NUMINO Challenge_B2
P. 146
23 7 29 4 The equivalent fractions of 3 are : 3 6
14 58 4 4 8
6 27
9 54 9 12 15
3 18 12 16 20
6
From the fractions above, choose fractions that
3 3 6 9 12 15 have a denominator greater than 6 and change
7 14 21 28 35
Since , them into fractions that are added with 2 , as
6
the difference between the denominator and
numerator for each fraction is 4, 8, 12, 16, 20, ... shown below.
To have 72( 4 18) as the difference between
the denominator and numerator, you need to 6 2 4 9 2 7 12 2 10
multiply the denominator and numerator of 8 6 2 12 6 6 16 6 10
Therefore, 10 is added to the denominator and
3 by 18. Therefore, 3 18 54 . numerator of 2 .
7 7 18 126 6
Answer Key
14 58 4 4 8
6 27
9 54 9 12 15
3 18 12 16 20
6
From the fractions above, choose fractions that
3 3 6 9 12 15 have a denominator greater than 6 and change
7 14 21 28 35
Since , them into fractions that are added with 2 , as
6
the difference between the denominator and
numerator for each fraction is 4, 8, 12, 16, 20, ... shown below.
To have 72( 4 18) as the difference between
the denominator and numerator, you need to 6 2 4 9 2 7 12 2 10
multiply the denominator and numerator of 8 6 2 12 6 6 16 6 10
Therefore, 10 is added to the denominator and
3 by 18. Therefore, 3 18 54 . numerator of 2 .
7 7 18 126 6
Answer Key
