(√7 + √5) × (√7 - √5) = _______________
24
4
2
8
The product of 15/16 and 8/3 is
5/2
2/5
23/19
None of these
The sum of three rational number is 5/7. If two of them are 9/14 and -19/28. Then which is the third one.
21/28
28/21
-21/28
-28/21
The product of 5 and reciprocal of 5/6
25/6
6/25
6
1
6/2 - 8/5 = ?
-3/7
-2/3
1.4
The additive identity of 7/8 is ---------
-7/8
0
-8/7
8/7
The rational number that is equal to its negative.
-1/2
3/4
6/9
The reciprocal of zero.
Not defined
Multiplicative identity of 26/13 is -----
13/26
-13/26
Zero
Additive inverse of -5/6
5/6
6/5
-6/5
