Basic Mathematics
Fractions
Evaluate \[ 2\frac{1}{4} \div 2\frac{1}{2}. \]
Evaluate \[\left(-\frac{19}{3}\right) \times \left(-\frac{15}{19}\right).\]
Divide \( 80 \) by \( \frac{1}{4} \) and then add \( 30\). What is the result?
Evaluate \[ 1\frac{5}{7} \div 1\frac{1}{5}. \]
Evaluate \[ 3\frac{1}{2} \times 4. \]