What I Know "Heads-up" 10 Instruction: Read each question carefully. Encircle the letter of the correct answer. Add the following fraction and simplify (1-3) 10 16 1. + 25 25 b. 1. 25 1 c. 125 d. a. 26 25 25 2. += b. . c. d. 10 12 a. 12 3. 24+5 10 a. 10 b. 711 c. 7 d. 12 링 12 10 12