li needs 15 pieces of string each 1/2 of a inch long. she cut a 6-inch piece of string into pieces that are 1/2 of an inch long
. how many more pieces of string does she need ?
2 answers:
She needs 3 more i think because...
1/2 divided into 6 is 12
just cross multiply 6/1 by 1/2
and 15-12=3
Li needs 3 more pieces, an 1 and 1/2 cut into 3 pieces.
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