3 years ago

3 and 1/4 times -2 and 3/5? Answers: A. -8 9/20 B. -6 and 3/20 C. 6 and 3/20 D. 8 and 9/20

Mathematics

2 answers:

sashaice [31]3 years ago

6 0

$3\frac{1}{4}*(-2\frac{3}{5})= \frac{13}{4}*(-\frac{13}{5})=-\frac{13*13}{4*5}=-\frac{169}{20}=-8\frac{9}{20}$

wolverine [178]3 years ago

6 0

$3\frac{3}{4}\cdot(-2\frac{3}{5})=\frac{3\cdot4+1}{4}\cdot\left(-\frac{2\cdot5+3}{5}\right)=\frac{13}{4}\cdot\left(-\frac{13}{5}\right)=-\frac{13\cdot13}{4\cdot5}=-\frac{169}{20}=-8\frac{9}{20}\\\\\\Answer:A$

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