Try to find less than 1 / (1 / 101 + 1 / 102) +1 / 109 + 1 / 110) Add solutions

Try to find less than 1 / (1 / 101 + 1 / 102) +1 / 109 + 1 / 110) Add solutions

Suppose all the items in the denominator are 1 / 101, and the result is 10.1,
Suppose all items in the denominator are 1 / 110, and the result is 11.0
That can confirm that the correct result lies between the above two results, namely 10.1

|1 / 102-1 / 101 | + | 1 / 103-1 / 102 | - | 1 / 103-1 / 101 | =? What is the formula

|1/102-1/101|+|1/103-1/102|-|1/103-1/101|
=(1/101-1/102)+(1/102-1/103)-(1/101-1/103)
=1/101-1/103-1/101+1/103
=0

Integer of sum of formula (10 / 101) + (10 / 102) + (10 / 103) +. + (10 / 119) + (10 / 120)
Please write down the specific calculation

1
The denominator becomes 100, the whole becomes larger, and we get 2. This formula must be less than 2
The denominator becomes 120, the whole becomes smaller, and 1.xxx is definitely larger than 1
So the integral part is 1

Arrange 3.08l-3 cubic decimeter 800 cubic centimeter-3l8ml from large to small
Arrange 50 hectares - 5 square kilometers - 550 square meters - 5000 square decimeters from large to small

3 cubic decimeter 800 cubic centimeter > 3.08l > 3l8ml
5 square kilometers > 50 hectares > 550 square meters > 5000 square decimeters

2 cubic decimeter 800 cubic centimeter = () ml

2 cubic decimeter 800 cubic centimeter = (2800) ml

[(- 5 / 7) square △ 1 and 14 / 11 × 8 / 7-1.25] × 6 / 1 / 4 (1 / 2) cube - (- 10) square

The square of [(- 5 / 7) square of 1 and 14 parts of 11 × 8 parts of 7-1.25] × 6 and 4 parts of 1 ／ (- 1 / 2) cube of - 10 = [(- 5 / 7) & # 178; △ 25 / 14 × 7 / 8-5 / 4] × 25 / 4 ／ (- 1 / 2) & # 179; - (- 10) & # 178; = [(25 / 49) x14 / 25 × 7 / 8-5 / 4] × 25X (- 2) - 100 = [1

38.9-77.8 × 48.9 + 48.9

38.9-77.8 × 48.9 + 48.9
=38.9-2x38.9 × 48.9 + 48.9
=(38.9-48.9)²
=10²
=100

(- 4 squared + 3 / 8) cube

(a + b) ^ 3 = a ^ 3 + 3A ^ 2B + 3AB ^ 2 + B ^ 3

-The square of 9 / 4 XY cube + 8 / 27 y cube

-The square of 9 / 4 XY cube + 8 / 27 y cube
=XY & # 178; (9x of 27 & # 178; - 9y of 4)

A 15 decimeter long cuboid steel has a cross-sectional area of 3.6 square decimeters. Each cubic decimeter of steel weighs 7.8 kg. How many kg does this steel weigh
hurry up

3.6 × 15 × 7.8 = 421.2kg