Answer:
[tex]3 \frac{9}{10} [/tex]
Step-by-step explanation:
First, subtract the whole numbers. This will make everything easier.
71 - 67 = 4
Now, get common denominators for the fractions.
Both fractions can be multiplied so the denominator is 10. Multiply 3/5 by 2 and 1/2 by 5.
[tex] \frac{3}{5} \times 2 = \frac{6}{10} [/tex]
[tex] \frac{1}{2} \times 5 = \frac{5}{10} [/tex]
Now, subtract.
[tex] \frac{5}{10} - \frac{6}{10} = - \frac{1}{10} [/tex]
You end up with:
[tex]4 ( - \frac{1}{10} )[/tex]
Of course, you can't have a negative fraction in a mixed number, so take 1 out of 4 to subtract the fraction.
[tex]3( \frac{10}{10} - \frac{1}{10} )[/tex]
You get:
[tex]3 \frac{9}{10} [/tex]