Question

add the following 5/2mn,-3/5mn,-4,3/2mn,+5,-2/5mn
tell answerrrrr plssss

Answer 1

Answer:

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

Step-by-step explanation:

$\frac{5}{2} mn + (-\frac{3}{5} mn)+ (-4) + \frac{3}{2} mn+ 5 + (-\frac{2}{5} mn)\\= \frac{5}{2} mn -\frac{3}{5} mn - 4 + \frac{3}{2} mn+ 5 -\frac{2}{5} mn\\=\frac{5}{2} mn -\frac{3}{5} mn+ \frac{3}{2} mn -\frac{2}{5} mn - 4 + 5\\= (\frac{5}{2} -\frac{3}{5} +\frac{3}{2} -\frac{2}{5} )mn + 1\\=\frac{25-6+15-4}{10} +1\\=\frac{30}{10} +1\\= 3 + 1\\= 4$