Practice problem
Multiply, then reduce to simplest form: 1011×910\frac{10}{11} \times \frac{9}{10}1110×109
119\frac{11}{9}911
911\frac{9}{11}119
1110\frac{11}{10}1011
1011\frac{10}{11}1110
Type a concept, like “slope” or “photosynthesis”.