1.4.8*2.7+32.76/6.3*2.7 2.88.8*2.6+44.4*6*2.5 3.24.8/（8*1.24

1、
=（4.8*6.3）/6.3*2.7+32.76/6.3*2.7
=(5*6.3-0.2*6.3)/6.3*2.7+32.76/6.3*2.7
=(31.5-1.26+32.76)/6.3*2.7
=(31.5+31.5)/6.3*2.7
=63/6.3*2.7
=27
2\
=88.8*2.6+44.4*2*3*2.5
=88.8*2.6+88.8*7.5
=88.8*(2.6+7.5)
=88.8*10.1
=88.8*10+88.8*0.1
=888+8.88
=896.88
3\
=24.8/(8*1.24*1.25)
=24.8/(8*1.25*1.24)
=24.8/(10*1.24)
=24.8/12.4
=2