Question

Guys I need to explain I can’t just write the answer to give me a sentence for this math question

Answer 1

Answer:

-0.7

Step-by-step explanation:

-0.75-(-$\frac{2}{5}$)+0.4+(-$\frac{3}{4}$) = -0.75-(-0.4)+0.4+(-0.75)

[I would prefer to change the fractions to decimals first for easier calculation]

-0.75-(-0.4)+0.4+(-0.75) = -0.75+0.4+0.4-0.75

[2 - makes one +. One + and one - makes one -. (Rule for breaking brackets)]

-0.75+0.4+0.4-0.75 = -1.5+0.8

[Simplify.]

-1.5+0.8 = -0.7