7 tents minus 1 half

0.2

Step-by-step explanation:

7/10-1/2=0.2

7 tenths minus 1 half?

first find a common denominator which is 10.

since 2 goes into 10 5 times, multiply the numerator by 5

7/10 - 1/2

7/10 - 5/10

7 - 5 = 2

2/10 which reduces to 1/5