# math

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Subtract six and one-half minus four and seven-tenths. Justify your steps.

• math -

6 1/2 - 4 7/10

When we subtract fractions, we must use a common denominator.

6 1/2 = 6 5/10

6 5/10 - 4 7/10

Now we need to borrow (or regroup).

6 5/10 = 5 15/10

5 15/10 - 4 7/10 = 1 8/10 = 1 4/5

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