Question

A seamstress has 1/4 of a foot of thread.Then she uses 1/5 of a foot of thread to sew a hole How much of the thread is left?

Answer 1

Answer: 9/20

Step-by-step explanation: I know this is late but hope that helps to other people. :)

Answer 2

1/10 of the thread is left because a connected to b is the thread and minus the 1/5 is 1/10 since 1/3 +total thread to begin wit.