Answer:
4/5
Explanation:
3/5 + 7/10 = 6/10 + 7/10 = 13/10
13/10 - 1/2 = 13/10 - 5/10 = 8/10 = 4/5
if we use BIDMAS we are meant to do 3/5+7/10 first which is the same as 6/10+7/10 6/10+7/10=13/10
13/10-1/2 is the same as 13/10-5/10
13/10-5/10=8/10
8/10=4/5
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