Maya has a piece of ribbon. She cuts the ribbon into 4 equal parts. Each part is then cut into 3 smaller equal parts. If the length of each small part is 35 cm, how long is the piece of ribbon?

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Answer 1 · 2016-09-26T16:54:54

#420# #cm#

if each small part is #35# #cm#, and there are three of those, multiply #(35)(3)# OR add #35+35+35#

you get
#105#

you now multiply #(105)(4)# OR add #105+105+105+105)# because that piece was one of four pieces

you get
#420# #cm#
(don't forget to add the unit!)

TO CHECK, divide

#420# divided up into #4# pieces
#(420/4)#

you get
#105#

that piece is then cut up into #3# smaller pieces, so divide #105# by #3#
#(105/3)#

you get
#35#