Question

40 POINT Multiply two and five-eighths negative two and three-fifths .

A negative six and thirty-three fortieths
B negative four and three-eighths
C four and three-eighths
D six and thirty-three fortieths

Answer 1

Answer:

A. negative six and thirty-three fortieths

Step-by-step explanation:

$2\frac{5}{8} *-2\frac{3}{5}$

rewrite the mix numbers into a improper fractions

$2\frac{5}{8} = \frac{(2*8)+5}{8} = \frac{16+5}{8} = \frac{21}{8}$

$-2\frac{3}{5} = -\frac{(2*5)+3}{5} = -\frac{10+3}{5} = \frac{-13}{5}$

multiply the improper fractions after rule (a/b) *(c/d) = (a*b)/(c*d)

$\frac{21}{8} *\frac{-13}{5} = \frac{21*-13}{8*5} =\frac{-273}{40}$

rewrite this improper fraction as a mix number

$-\frac{273}{40} = \frac{(6*40)+33}{40} = -6\frac{33}{40}$