A jewelry maker purchased 20 inches of gold chain. She used 3/8of the chain for a bracelet. How many inches of gold chain did she have left?
If 3/8 ths used the 5/8 is left 5/8 * 20 = ........ in left
If she used 3/8, then she must have 5/8 left
20 (5/8) = 100/8 = 25/2 = 12.5 inches left
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