four ninths means 4/9 and of means multiply= 4/9 × 45 =20/1 =20

four ninth means 4/9 So, we need to find 4/9 of 45 So, 4/9 of 45 = 4/9 * 45 = 4* 5 ( 45 divided by 9 is 5 ) = 20/1 = 20 Therefore, four ninths of forty five is 20