first step , i would be converting all the fractions to decimals
-6 3/4= -6.75
26/5=5.2
-5 3/8=5.625
so the numbers are
-6.5,5.7,-6.75,5.2,-5.625
arranged from least to greatest becomes;
-6.75 ,-6.5 ,-5.625, 5.2, 5.7
answer:-6 3/4, -6.5, -5 3/8, 26/5, 5.7