Answer
$5\frac{3}{8}$
Work Step by Step
$7-1\frac{5}{8}$
Now. convert mixed fractions into improper fractions,
= $7-\frac{8\times1+5}{8}$
= $7-\frac{13}{8}$
now the least common multiple of 1 & 8 is 8. so multiply the nominator and denominator of first fraction with 8.
$\frac{7\times8}{1\times8}-\frac{13}{8}$
= $\frac{56}{8}-\frac{13}{8}$
Subtract numerators, as all fractions have same denominator
= $\frac{56-13}{8}$
= $\frac{43}{8}$
= $5\frac{3}{8}$
