A simple method is used to calculate 1.4.6 △ 8 + 5.4 × 12.5% 2.8 / 1 × 6 / 1 + 87 Calculation by simple method 1.4.6÷8＋5.4×12.5％ 1 / 2.8 × 1 / 6 + 87.5% / 6 3.（6.35×65％＋3.65×0.65）÷20％ 4.0.2×37％＋0.63×20％＋44％

A simple method is used to calculate 1.4.6 △ 8 + 5.4 × 12.5% 2.8 / 1 × 6 / 1 + 87 Calculation by simple method 1.4.6÷8＋5.4×12.5％ 1 / 2.8 × 1 / 6 + 87.5% / 6 3.（6.35×65％＋3.65×0.65）÷20％ 4.0.2×37％＋0.63×20％＋44％

1、4.6/8+5.4*12.5%=4.6*0.125+5.4*0.125=0.125*（4.6+5.4）=0.125*10=1.25
2. 1 / 8 * 1 / 6 + 87.5% divided by 6 = 0.125 * 1 / 6 + 0.875 * 1 / 6 = (0.125 + 0.875) * 1 / 6 = 1 * 1 / 6 = 1 / 6
3、（6.35*65%+3.65*0.65）/20%=（6.35*0.65+3.65*0.65）/0.2=0.65*（6.35+3.65）/0.2=0.65*10/0.2=6.5/0.2=32.5
4、0.2*37%+0.63*20%+44%=0.2*（1-0.63）+0.63*0.2+0.44=0.2-0.2*0.63+0.63*0.2+0.44=0.2+0.44=0.64

1*3+2*6+4*12/2*4+4*8+8*16

1*3+2*6+(4*12)/(2*4)+4*8+8*16
The results are as follows
==3+12+6+32+124
==21+32+124
==53+124
==177
1*3+2*6+4*12/2*4+4*8+8*16
The results are as follows
==3+12+96+32+124
==111+156
==267

Split the twentieth into six different units, the sum of fractions?

1/20 = 1/40 + 1/80 + 1/160 + 1/320 + 1/640 + 1/960 + 1/1920

Divide 1 / 11 and 1 / 19 into two different unit fractions

1/11=1/12+1/132
1/19=1/20+1/380