Question

1 three fourths -- seven tenths

Answer 1

$1 \ three \ fourts \to 1\frac{3}{4} \to \frac{7}{4} \\\\ seven \ thenths \to \frac{7}{10} \\\\ \frac{7}{4}^{(5}-\frac{7}{10}^{(2}}= \\\\ =\frac{35-14}{20}= \\\\ =\boxed{\frac{21}{20}}$

Answer 2

1 3/4
7/10
when you divide them 
 7/4 /  7/10
14/8    7/10
21/20 
this is it i guess