Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Calcula la siguiente operación sin utilizar la calculadora: [open parentheses 7 over 2 plus 4 over 5 close parentheses times open parentheses 8 over 7 minus 3 over 2 times 5 over 2 close parentheses minus 3 over 2 equals] : -560/3559; -4399/280; -3559/280; 4679/280
Right answer summary: -3559/280
Question state: todo