The decimal units of 1, 1 and 3/8 are (1/8), and it has (1 1) such units. Adding up (1) such units is the smallest composite number.

2. The sum of all the simplest true fractions whose denominator is 15 is (4).

3, four tenths plus two tenths, one * * * has ten (6), which is (6), and the simplest score is (3/5).

4. One third of 6/5 kilograms is (7/6) kilograms, and 5/8 kilometers is a quarter kilometer less than (7/8) kilometers.

5. Use fractions to represent the following figures. Pay attention to the use of fractions, which can be converted into the simplest fractions! ! !

1 hour 25 minutes =( 1 and 5/ 14) 4 kg and 25 g =( 4 and 1/40) kg.

3 square meters 15 square decimeter =( 3 3/20) square meters 2 cubic meters 18 cubic decimeter =(2 9/500) cubic meters.

6. The numerator of the simplest fraction is reduced to one-third of the original, and the denominator can be reduced to about two-sevenths after five expansions. The original fraction is (30/7).

7. Four fifths of1m is one fifth as long as (4m).

8. Distribute 4 kilograms of apples to five children equally, and each can get (4/5) kilograms, and each can get (4) of 1 kilogram. You can fill in the simplest score and the simplest score here.