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Q: What is 7 over 10 minus 2 over 5?

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2/5 = 4/10 minus 1/10 is 3/10

3/5 minus 2/10 is 2/5

It is: 4/5 minus 1/2 = 3/10

2/10 which is 1/5

1/2 minus 1/5 = 3/10 or 0.3

3/2 minus 1/5 = 1 3/10

9/10 - 2/5 = 9/10 * 4/10 = 5/10 = 1/2 or 0.5

7/10 - 1/5 = 7/10 - 2/10 = 5/10 = 1/2

4/5 - 2/10 = 4/5 - 1/5 = 3/5

9/10 - 1/2 = 9/10 - 5/10 = 4/10 = 2/5

1/2 = 5/10 so then 5/10 - 3/10 = 2/10 = 1/5

2/5 - 3/10 = (2×2)/(5×2) - 3/10 = 4/10 - 3/10 = (4-3)/10 = 1/10.

4/10 or 2/5

1/5 - 1/10 = 2/10 - 1/10 = (2 - 1)/10 = 1/10

-5/10 + 8/10 = 3/10

6/10 - 1/5 is the same as 6/10 - 2/10 = 4/10 or 2/5 in its lowest terms

5 - 23/10 = 5 - 2.3 = 2.7

2/5 − 1/10 = 15/50 which reduces to 3/10

4/5 - 3/10 = 8/10 - 3/10 = 5/10 = 1/2

9/10 - 2/5= 9/10 - 4/10= 5/10= 1/2

39/10 - 12/5 = 39/10 - 7/5 = 39/10 - 14/10 = 25/10 = 5/2 = 21/2

4/10 - 1/5 = 2/5 - 1/5 = 1/5

-3/10

1/10

(7-3)/10 = 4/10 = 2/5