Which product is not equal to -1?
A. 4/5 • 85/68
B. 3/27 • - 216/24
C. 7/8 • -16/14
D. -1/12 • -12
1 answer
It must be the answer that multiplies two positive numbers.
A. 4/5 • 85/68
B. 3/27 • - 216/24
C. 7/8 • -16/14
D. -1/12 • -12
1 answer