Answer:
.553
Explanation:
First you are going to have to find what -11/40 is in a decimal form. The decimal form for -11/40 is -.275. The way You would find the decimal from the fraction is by putting 40 as our divisor and 11 as our dividend, and don't forget to put in the negative sign. Once you already have -.275, you would have to subtract .278 from the .275 that we had, which would equal to .553