## Prealgebra (7th Edition)

$1.319444444$... or $1\frac{23}{72}$
Press the following keystrokes on your calculator: $(, 4, \div, 9, ), +, (, 7, \div, 8, ), =$ Pressing those buttons in the following sequence will solve the following equation: $\frac{4}{9}+\frac{7}{8}=?$ Your answer should be $1.319444444$... or $1\frac{23}{72}$