2.4x[2.5/7.5] 2.5x2.4x2.5

2.4x[2.5/7.5] 2.5x2.4x2.5

2.4x[2.5/7.5]
=2.4x1/3
=0.8
2.5x2.4x2.5
=2.5x4x2x0.3x2.5
=10x0.3x2x2.5
=3x5
=15

-5.4x2/7-1.6x2/7 = how much?

Is it an X or a ride? I think it's a ride
（-5.4*2-1.6*2）/7=（-7*2）/7=-2
The denominator is the same

It is simple and convenient, 40.35 ÷ [43.2x2-59.5] 130.5 - [10.2-5.2] 2.4x1.5 + 7.6x2 3 1.5x2.5x0.8 + 4.5

40.35÷[43.2x2-59.5]
=40.35÷[86.4-59.5]
=40.35÷26.9
=1.5
130.5-[10.2-5.2]
=130.5-5
=125.5
2.4x1.5 + 7.6x2 3 / 2
=2.4*1.5+7.6*1.5
=(2.4+7.6)*1.5
=10*1.5
=15
1.5x2.5x0.8+4.5
=1.5*2.5*0.4*2+4.5
=1.5*2*(2.5*0.4)+4.5
=3+4.5
=7.5