1/9 as a %
0.1 recring as a fraction
x- $\sqrt{y}$=( $\sqrt{8}$--5)/( $\sqrt{18}$+1
1(1/2)*2(3/5)
1/3+1/12=
how many primes exist between 1000 and 1500
7/15 x 5
2440^1/3
2440^3