How would you arrange these numbers from greatest to least: #22/50, 25%, 2xx10^-1, .251#?

1 Answer

Greatest is #22/50#, then #0.251#, then #25%# and finally the least is #2xx10^(-1)#

Explanation:

The easiest way to compare such numbers (involving fractions) is to convert them to decimal numbers so that all numbers are up to same number of digits after decimal point.

#22/50=(22xx2)/(50xx2)=44/100=color(white)(XX)0.440#

#25%=25xx1/100=color(white)(XXXX)0.250#

#2xx10^(-1)=2xx1/10=0.2=0.200#

#0.251=color(white)(XXXXXXXXXXx)0.251#

Hence greatest is #22/50#, then #0.251#, then #25%# and finally #2xx10^(-1)#