Question

15 upon 4 add 13 upon 4 divide 13 upon 2 minus 5 upon 4 ​

Answer 1

$( \frac{15}{4} + \frac{13}{4}) \div \frac{13}{2} - \frac{5}{4} \\ = (\frac{15 + 13}{4}) \div \frac{13}{2} - \frac{5}{4} \\ = \frac{28}{4} \div \frac{13}{2} - \frac{5}{4} = 7 \times \frac{2}{13} - \frac{5}{4} \\ = \frac{14}{13} - \frac{5}{4} = \frac{56 -65 }{52} = \frac{9}{52}.$

hope its helpful !