-1的五次方-2又1/3+4又1/5÷(-3)x(-5/21)
=-1-2又1/3+21/5x5/12÷3
=-3又1/3+1/3
=-3
-81÷2又1/4-(-4/9)÷(-16)
=-81x4/9-1/36
=-36-1/36
=-36又1/36
(-2的三次方)-2又1/4+(-3/2的二次方)÷(-1/2)
=-8-9/4-9/4x2
=-8-9/4-18/4
=-5/4
-1的五次方-2又1/3+4又1/5÷(-3)x(-5/21)
=-1-2又1/3+21/5x5/12÷3
=-3又1/3+1/3
=-3
-81÷2又1/4-(-4/9)÷(-16)
=-81x4/9-1/36
=-36-1/36
=-36又1/36
(-2的三次方)-2又1/4+(-3/2的二次方)÷(-1/2)
=-8-9/4-9/4x2
=-8-9/4-18/4
=-5/4