6) 480*216/(105*48)=10*72/35=2*72/7=144/7
7)12*35*143/(34*77*39)=6*11*11/(17*11*3)=2*11/17=22/17
8)3*(4/9)+1/16=64/48+3/48=67/48=1 19/48
9) 8^3*16^4/32^5=2^25/2^25=1
10) 81^21/27^27=3^84/3^81=3^3=27
11)(3,6825*0,03)/(0,25*0,36*6)=
(0,9*100*0,03)/(0,09*6)=0,9*3/(0,09*6)=10/2=5
2,7*(-2,03)-(-6,75):2,25-6,12:(3-3,25) = 21,999
1) 2,7*(-2,03) = -5,481
2) (-6,75):2,25 = -3
3) -5,481-(-3) = -2,481
4) 3-3,25 = -0,25
5) 6,12:(-0,25) = -24,48
6) -2,481-(-24,48) = 21,999