2 5 k 1 10 k July 8, 2019 16 32 64 128 Dfrac 2 5 k dfrac 3 5+ dfrac 1 10 k combine like terms 2 5 k 3 5 1 10 k Dfrac 2 5 k dfrac 3 5+ dfrac 1 10 k simplified 2/5 + 3/10 2 5×105
