Add the two percentages together and divide by 200.
Add the percentages together:
31+32=63
Dividing by 200 is the same as dividing by 2 then dividing by 100
Divide 63 by 2:
31.5
To divide by 100, move the decimal point two places to the left:
.315
Finally, to avoid losing the decimal point, place 0 in front:
0.315
This decimal is between 31% and 32%