(0.75-3/16)×(2/9+1/3)
=(9/16-3/16)×(2/9+3/9)
=3/8×5/9
=5/24
【1-(1/4+3/8)】÷1/4
=【1-5/8】÷1/4
=3/8×4
=3/2
(0.75-3/16)*(2/9+1/3)
=(3/4-3/16)*(2/9+1/3)
=(12/16-3/16)*(2/9+3/9)
=9/16*5/9
=5/16
【1-(1/4+3/8)】/ 1/4
=【1-(2/8+3/8)】/ 1/4
=【1-5/8】/ 1/4
=3/8/ 1/4
=3/8*4
=3/2