1;4;5

3 1/4 1/5 4/7 (1)(1+2/3+3/4+4/5+5/6)*(1+3/4+4/5)-(1+3/4+4/5)*(2/3+3/4+4/5+ (（1^4+1/4)(3^4+1/4)(5^4+1/4).(19^4+1/4))/((2^4+1/4)(4^4+1/4) 5/9÷[4/5÷（3/5-1/4)] 4^2÷(-1/4)-5^4÷(-5)^3, (x^5)+(x^4)+1 1 2 3 4 5 1 ( ) ( )× 4 5 -------------------------( ) ( ) ( )( ) 0 8-- 4分之1除以5 1+5+8+4等于 英语,1,4,5  .1,2,3,4,5,