Mathematics, 04.12.2021 14:40 DSUDLER5555

Surabaja has a string of length 3/7 m. Sourish has a string of length 4/21 m. If they join these two strings without any overlap, how long will the new string be? a)7/28 m
b) 7/21 m
c)12/21 m
d)13/21 m

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Surabaja has a string of length 3/7 m. Sourish has a string of length 4/21 m. If they join these two...