(1 / 24 + 2 / 23) * 23 + 1 / 24 simple operation

(1/24+2/23)*23+1/24
=1/24*23+2/23*23+1/24
=23/24+2+1/24
=2+(23/24+1/24)
=2+1
=3

Simple calculation of 23 × 23 / 24

Original form
=（24-1）×23/24
=24×23/24-23/24
=23-23/24
=22 and 1 / 24

(5.9 + 0.35) * 2.5,21 / 1.5-0.15 3.7 * 99 + 3.7 simple calculation

（5.9+0.35)*2.5
=6.25*2.5
=25/4*5/2
=125/8
21/1.5-0.15
=14-0.15
=13.85
3.7*99+3.7
=3.7*99+3.7*1
=3.7*(99+1)
=3.7*100
=370

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