1. One half meter shorter than four fifths of a meter is a meter, and five eighths of a meter is a meter shorter than a meter 2. If the denominator is 5, the sum of the simplest true fractions is [], which is the smallest composite number 3. In the process of one and a half + three and a quarter of seven + three of seven = one and a half + [three and a quarter of seven + three of seven], the law of [ In the natural number of 4.20, there are odd number, even number, prime number, total number

1. One half meter shorter than four fifths of a meter is a meter, and five eighths of a meter is a meter shorter than a meter 2. If the denominator is 5, the sum of the simplest true fractions is [], which is the smallest composite number 3. In the process of one and a half + three and a quarter of seven + three of seven = one and a half + [three and a quarter of seven + three of seven], the law of [ In the natural number of 4.20, there are odd number, even number, prime number, total number

1. Shorter than four fifths of a meter, one-half of a meter is [3 / 10] meters, and five eighths of a meter is shorter than [9 / 8] meters. 2. The denominator is the sum of the simplest true fractions of five, which is [2], and it plus [2] is the smallest composite number. 3. In one and half + three and four seventh + three seventh = one and half + [3 and seven

The total length of the three wires is seven eighths of a meter. The first and second wires are three fourths of a meter. The second and third wires are half of a meter. How long are the three wires
We should synthesize the formula
How long are the three wires?

1. The total length of three wires is seven eighths of a meter. 2. The first and second wires are three fourths of a meter. 3. The second and third wires are half of a meter. 2 + 3 = the first wire + the second wire + the second wire + the third wire = ten eighths. 2 + 3-1 = the second wire is three eighths of a meter

(find the law): 1. One, half, two-thirds, three eighths () () 2. Half, three fifths, five eighths () ()
3. One half, two thirds, eight ninths
4. 1 / 2, 3 / 2, 3 / 8, 15 / 8 ()

1.8/15 15/48_ Each numeral denominator is the next numeral numerator. The product of the two numbers is 1 / 2, 1 / 3, 1 / 4, 1 / 5
2.7/11 9/14
3.32/27 128/81
4.7/16 31/16