Rationalise the Denominator
Question 1:
2
3
−
7
3
+
7
Question 2:
2
1
+
2
−
2
+
2
Question 3:
6
+
2
10
−
2
31
+
8
2
49
Question 4:
7
−
5
6
−
5
37
+
5
31