Step-by-step explanation:
Find common denominators.
GCF of 10 and 100 is 100.
[tex] \frac{2 \times 10}{10 \times 10} = \frac{20}{100} [/tex]
Add each numerator:
[tex] \frac{20}{100} + \frac{10}{100} = \frac{30}{100} [/tex]
Simplify:
[tex] \frac{30 \div 10}{100 \div 10} = \frac{3}{10} [/tex]
