(3/8+4/25)×4+9/25
=3/8×4+4/25×4+9/25
=3/2+(16/25+9/25)
=1.5+1
=2.5
16/3-7/6÷(9/14+6/13)
=16/3-7/6÷201/182
=3216/603-637/603
=2579/603
(3/8+4/25)×4+9/25
=3/8×4+4/25×4+9/25
=3/2+(16/25+9/25)
=1.5+1
=2.5
16/3-7/6÷(9/14+6/13)
=16/3-7/6÷201/182
=3216/603-637/603
=2579/603