16又七分之四乘以2.4加上三又七分之一除以十二分之五减去2.4
=16又4/7×2.4+3又1/7×12/5-2.4
=16又4/7×2.4+3又1/7×2.4-2.4
=2.4×(16又4/7+3又1/7-1)
=2.4×18又5/7
=12/5×(18+5/7)
=216/5+12/7
=43又1/5+1又5/7
=44又32/35
16又七分之四乘以2.4加上三又七分之一除以十二分之五减去2.4
=16又4/7×2.4+3又1/7×12/5-2.4
=16又4/7×2.4+3又1/7×2.4-2.4
=2.4×(16又4/7+3又1/7-1)
=2.4×18又5/7
=12/5×(18+5/7)
=216/5+12/7
=43又1/5+1又5/7
=44又32/35