1) a = -2/3 b = 5/7 (addition a+b,b+a)(subtraction a-b,b-a) (multiplication a×b, b×a) (division a÷b,b÷a)
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1) a = -2/3 b = 5/7 (addition a+b,b+a)(subtraction a-b,b-a) (multiplication a×b, b×a) (division a÷b,b÷a)
1. (c) both positive and negative
2. (c) 6/5
3. (b) 1
4. (c) addition and multiplication
6. (a) 5
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