Use the fractions {á
7 1 2 3
}
30' 3' 5' 5' 3
to fill in the blank squares in the table below,
Each fraction can be used only once.
Arrange the fractions so that the sum of the fractions in the first row is 2,
and the sum of the fractions in the second row is 1.
1
In addition, the differences down each column must equal
&
15' 30 10'
1 17
from left to right,
15
subtract subtract subtract subtract
+
sums
Add
1
2
2
1
Add
1
10
1
17
1
differences
4
15
15
30
10