3 years ago

PLEASE HELP 23 point

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

7 0

Answer:

Step-by-step explanation:

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Type in your answer as a reduced mixed number with the negative in front of the whole number -8 3/4+ -11 1/3

motikmotik

$-8\dfrac{3}{4}+\left(-11\dfrac{1}{3}\right)=-\left(8\dfrac{3\cdot3}{4\cdot3}+11\dfrac{1\cdot4}{3\cdot4}\right)\\\\=-\left(8\dfrac{9}{12}+11\dfrac{4}{12}\right)=-\left[(8+11)+\left(\dfrac{9}{12}+\dfrac{4}{12}\right)\right]\\\\=-\left(19+\dfrac{13}{12}\right)=-\left(19+1\dfrac{1}{12}\right)=-20\dfrac{1}{12}$