Answer
$73^o10'$
Work Step by Step
Add the corresponding parts to obtain:
$=(48+24)^o + (18+52)'
\\=72^o + 70'$
RECALL:
$60' = 1^o$
Use the conversion above to obtain
$72^o+70'
\\=72^o + 60' + 10'
\\=72^o + 1^o + 10'
\\=73^o+10'
\\=73^o10'$
