4/9 of 9 = 4
9 - 4 is not the same as 4 - 9 Subtraction is not commutative.
9/4
(4/9)³ = (4/9) × (4/9) × (4/9)(4/9) × (4/9) = 16/81(16/81) × (4/9) = 64/729
-5
9 divided by 9/4 = 4
4/9 x 9 = 4.
40/9 = (36+4)/9 = 36/9 + 4/9 = 4 + 4/9 or 44/9
4/9 is equal to 4:9 the ratio.
The reciprocal of 4/9 is 9/4 or 21/4
You can get 9 with the sum 4 + 4 + (4/4) = 9
1/9 + 4/9 = 5/9