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valkas [14]
3 years ago
7

How do I subtract 3 - 1 2/7

Mathematics
1 answer:
inna [77]3 years ago
5 0

Answer:

5/7

Step-by-step explanation:

3-1 2/7

3=21/7 (by multiplying denominator)

1 2/7=16/7 (by multiply 1 and 7. Then add to 2)

21/7 - 16/7 = 5/7

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The value of <em>d</em> is 7.5.

The key to solving equations is doing the inverse, or opposite, function/process.
For example, you subtract when d + 1 = 2:
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In the same way, you add values when you have a negative:
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This doesn't solve your problem, it just makes the value needed to be canceled out larger.

Thus d = 7.5 and you will add because the value is negative.
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