3.2 x 10^-2 + 3.2 x 10^-4 + 2.8 x 10^-2 = 3.2 + 2.8 = 6 x 10^-2 + 3.2 x 10^-4 Convert 3.2 into fraction which is 16/5 And express with a positive exponent using “a^-n = 1/a^n” therefore = 6 x 10^-2 + 16/5 x 1/10^4 = 6 x 1/10^2 + 16/5 x 10^4 = 6 x 1/100 + 16/5 x 10,000 Reduce 6 and 100 with the GCF ‘2’ Then reduce 16 and 10,000 with 16 = 3 x 1/50 + 1/5 x 625 Multiply = 3/50 + 1/3125 Then add The answer is = 377/6250 = 0.06032
