Question #9879a

3 Answers
Jul 31, 2017

#225 cm#

Explanation:

Converting the units in the metric system is really easy as it simply involves multiplying or dividing by powers of #10#.
In practice this means move the decimal point to the right or left.

If you convert to a smaller unit, the number gets bigger. (multiply)
If you convert to a bigger unit, the number gets smaller. (divide)

#2 1/4#m means the same as #2.25m#

#1# metre = #100# centimetre.

#2.25m = 2.25xx100 = 225cm#

Aug 1, 2017

225 cm.

Explanation:

#2 1/4m=2.25m#
#1m##100cm#
#2.25m##2.25×100=225cm#

Aug 3, 2017

#225# cm

Explanation:

#2 1/4# is nothing other than #2+1/4#

By Taking LCM,

#(2(4)+1)/4=(8+1)/4=9/4#

#9/4# is #2.25#.

1m = 100 cm

then #2.25#m is ,

#2.25 * 100=225#

#hence#,
#2.25m# is #225cm#.