1/5 x 1/4 is 1/20
4/5x1.17 = 0.94
-1/5 x 20/4 is -1
21 x 1/5 = 4 1/5 or 4.2
4+1/5 x 2 = 8 2/5
1/5 (one fifth)
4 and 1/2 x 1/5 = 9/10
one twentieth 1 / 5 x 1 / 4 = (1 x 1) / (5 x 4) = 1 /20
4 1/5 + 3 4/5 = 8
16/5 x 3/2 = 48/10 = 24/5 or 4 and 4/5
2/25
Actually, a better way to say this would be "what is 4 to the fifth power?" The answer is 1024.