8.6*2.7+62*14%+35*0.86 121+27+121*60+121*16+79*91+12*79 8.6*2.7+62*14%+35*0.86 121+27+121*60+121*16+79*91+12*79 It's a simple calculation

8.6*2.7+62*14%+35*0.86 121+27+121*60+121*16+79*91+12*79 8.6*2.7+62*14%+35*0.86 121+27+121*60+121*16+79*91+12*79 It's a simple calculation

8.6*2.7+62*14%+35*0.86
=0.86*27+62*0.14+35*0.86
=0.86*(27+35)+62*0.14
=0.86*62+62*0.14
=62*(0.86+0.14)
=62*1
=62
121*27+121*60+121*16+79*91+12*79
=121*(27+60+16)+79*(91+12)
=121*103+79*103
=103*(121+79)
=103*200
=20600

1×2×3+2×4×6+7×14×211×3×5+2×6×10+7×21×35．

The original formula is 6 + 48 + 205815 + 120 + 5145, = 21125280, = 25

5 / 7 + 1 / 4-9 / 14

5 / 7 + 1 / 4-9 / 14 = 20 / 28 + 7 / 28-18 / 28 = 9 / 28