Please Help ! Hopefully someone can guide me step by step!

Janet wants to make some new clothes. she purchases three pieces of fabric to make a dress, a jacket and a pair of pants. the first piece is 3 5/7 yd long. Another piece is 4 2/7 yd long. and the last piece is 2yd long. find the total number of yards of fabric that janet purchases

Please Help Hopefully someone can guide me step by step Janet wants to make some new clothes she purchases three pieces of fabric to make a dress a jacket and a class=
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