1 three fourths -- seven tenths
\(1 \ three \ fourts \to 1\frac{3}{4} \to \frac{7}{4} \\\\ seven \ thenths \to \frac{7}{10} \\\\ \frac{7}{4}^{(5}-\frac{7}{10}^{(2}}= \\\\ =\frac{35-14}{20}= \\\\ =\boxed{\frac{21}{20}}\)
1 3/47/10 when you divide them 7/4 / 7/1014/8 7/1021/20 this is it i guess
