For numbers 2a-2d without multiplying use the symbols form he list on the right to indicate the product will compare with the factor. Symbols can be used more than once

The rules of this problem will be as follow:
we have a * b = x
1) If a > 1 and  b > 1 ⇒⇒⇒ x > a  and  x > b
2) If a > 1 and  b < 1 ⇒⇒⇒ x < a  and  x > b
3) If a < 1 and  b < 1 ⇒⇒⇒ x < a  and  x < b
4) If a = 1 and  b > 1 ⇒⇒⇒ x > a  and  x = b
5) If a = 1 and  b < 1 ⇒⇒⇒ x < a  and  x = b
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2a) (13/4) * (5/8) = x  ⇒⇒⇒⇒ rule (2)
     ∴ x < (13/4)    and  x > (5/8)

2b) (4/3) * 6 = x  ⇒⇒⇒ rule (1)
     ∴ x > (4/3)    and  x > 6

2c) (2/5) * (1/7) = x ⇒⇒⇒⇒ rule (3)
     ∴ x < (2/5)   and   x < (1/7)

2d) (5/8) * (7/7) = x ⇒⇒⇒ rule (5)
     x = (5/8)   and  x < (7/7)