Joelle used
47 of the ribbon to tie some presents. She threw away
49 of the remaining ribbon. As a result, she had 35 cm of the ribbon left. How much ribbon did Joelle have at first? Give your answer in cm.
Fraction of the ribbon left after tying some presents
= 1 -
47=
37 Fraction of the remaining ribbon left after throwing away
= 1 -
49=
59
Fraction of the total ribbon left
=
37 ×
59=
521
Length of the ribbon at first = 21 u
Length of the ribbon left = 5 u
5 u = 35
1 u = 35 ÷ 5 = 7
Length of the ribbon at first
= 21 u
= 21 x 7
= 147 cm
Answer(s): 147 cm
