5.6乘以3又4分之3减4又5分之2乘以3.75+0.88乘以37又2分之1

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5.6乘以3又4分之3减4又5分之2乘以3.75+0.88乘以37又2分之1

5.6乘以3又4分之3减4又5分之2乘以3.75+0.88乘以37又2分之1
=5.6×3.75-4.4×3.75+0.88×37.5
=5.6×3.75-4.4×3.75+8.8×0.1×37.5
=(5.6-4.4+8.8)×3.75
=10×3.75
=37.5