5\1-10\1-20\1-40\1-80\1-160\1-360\1

5\1-10\1-20\1-40\1-80\1-160\1-360\1

The title should be 320 / 15 / 1-10 / 1-20 / 1-40 / 1-80 / 1-160 / 1-320 / 1 = 5 / 1 - (10 / 1 + 20 / 1 + 40 / 1 + 80 / 1 + 160 / 1 + 320 / 1) = 5 / 1 - (10 / 1 + 20 / 1 + 40 / 1 + 80 / 1 + 160 / 1 + 320 / 1 + 320 / 1) = 5 / 1 - (5 / 1-320 / 1) = 320 / 1

Clever calculation: 1 / 5-1 / 10-1 / 20-1 / 40-1 / 80-1 / 160-1 / 320 =? (write the calculation process!)

1/5－1/10－1/20－1/40－1/80－1/160－1/320
=1/5－1/10－1/20－1/40－1/80－1/160－1/320-1/320+1/320
=1/5－1/10－1/20－1/40－1/80－1/160－1/160+1/320
=1/5－1/10－1/20－1/40－1/80－1/80+1/320
=1/5－1/10－1/20－1/40－1/40+1/320
=1/5－1/10－1/20－1/20+1/320
=1/5－1/10－1/10+1/320
=1/5-1/5+1/320
=1/320

[5 divided by 5 out of 6 minus 5 out of 6 divided by 5] minus 1 and 3 out of 10

[5 / (5 / 6) - (5 / 6) / 5] - 1 and 3 / 10
=[6-1/6]-13/10
=35/6-13/10
=175/30-39/30
=136/30
=68/15

(seven and five twelfth minus six and three fourths) divided by one-half

=(7 5/12-6 3/4)*2
=(89/12-81/12)*2
=2/3*2
=4/3

Six out of seven minus three out of four

Three fourths

3 / 4 minus 6 / 7 plus 13 / 14?

3/4-6/7+13/14=3/4-（12/14-13/14）=3/4-1/14=21/24-2/28=19/28

Three quarters minus three quarters divided by three and one fifth
Use a simple method to calculate! 7 / 9 divided by 11 / 5 plus 2 / 9 multiplied by 5 / 11
88 times (7 out of 11 minus 3 out of 8)
99 times 99 out of 100
12 out of 13 times 3 out of 7 plus 4 out of 7 times 12 out of 13 minus 12 out of 13

1.=3/4--1/4+1/5=5/10+2/10=7/10.
2.=1--7/10=3/10.
3.=5/8+（7/16--1/4）*2=5/8+7/8--1/2=3/2--1/2=1.
4.=4/9.

What is the product of the quotient of 30 divided by 15 multiplied by the difference between 2 / 3 and 1 / 2?

(30/15)*(2/3- 1/2)=2*(1/6)=1/3

What is the product of the sum of 8 and 2.4 multiplied by 0.52 divided by 15.6

（8+2.4）×（15.6÷0.52）＝10.4×30＝312

What is the difference between 5.16 minus the product of 0.8 and 5.2? What is the sum of the quotient of 0.299 divided by 0.23 plus the product of 15.4 and 2.5?

(1) 5.16-0.8 × 5.2, = 5.16-4.16, = 1. A: the difference is 1. (2) 0.299 △ 0.23 + 15.4 × 2.5, = 1.3 + 38.5, = 39.8. A: the sum is 39.8