12 3/5 - 3 7/10

twelve and 3 fifths minus three and 7 tenths

Answer is 8 9/10

We convert 'fifths' into 'tenths'

3/5 = (x2) = 6/10

Note 7/10 is more and 10/10 = 1

We can predict their will be 9/10 after we subtract and do the sum.

12 6/10 - 3 7/10 = 8 9/10

Step-by-step explanation:

We redo with decimals

12.6 - 3.7 = 8.9 = 8 9/10