Negatif tiga satu per empat di tambah tiga kurung buka dua per lima di bagi tiga per empat kurung tutup

-3 1/4 + 3 ( 2/5 : 3/4 )
= -13/4 + 3/1 ( 2/4 × 4/3 )
= -13/4 + 3/1 ( 8/12 )
= -13/4 + 3/1 (2/3)
= -13/4 + 6/3
= -39/12 + 24/12
= -15/12
= -5/4
= -1 1/4

-3 1/4 + 3( 2/5 ÷ 3/4 )
= -13/4 + 3( 2/5 × 4/3 )
= -13/4 + 3( 8/15 )
= -13/4 + 24/15
= -13/4 + 8/5
= -65/20 + 32/20
= -33/20
= -1 13/30