Question

what should be added to 6 whole 3 upon 5 to get 15​

Answer 1

Let the added number be x

6 3/5 + x = 15

33/5 + x = 15

x = 15 - 33/5

x = (75 - 33)/5

x = 42/5

Answer 2

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8 whole 2 upon 5

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