The former term of (1) 5: 7 is (5), the latter term is (7), and the ratio is (5/7).

(2) The former term of 1 1 is (1 1), the latter term is (3), and the ratio is (11).

(3) White rabbit 10, black rabbit 17, and the ratio of white rabbit to black rabbit (10): (17); The ratio of black rabbit to white rabbit is (17): (10).

(4) A car travels for 3 hours 180km, and the ratio of distance to time is (180): (3), and the ratio is (60).

(5)11:6 = (11) ÷ (6) = (11) in point (6).

(6) 2/9 = (2) ÷ (9) = (2): (9)

Fill in the picture

(1) The ratio of blank part to painted part is (5): (3), and the ratio is (5/3).

(2) The ratio of the blank part to the whole circle is (5): (8), and the ratio is (5/8).

(3) The ratio of painted part to blank part is (3): (8), and the ratio is (3/8).

3. Looking for ratio (writing process)

9: 36 = 1 (directly about 9)

32 out of 24 = 4 out of 3 (approximately 8 directly)

3/5: 2/3 = 3/5 ÷ 2/3 = 3/5 × 3/2 = 65438+9/00

The following is a record of the total price and weight of several foods bought in the supermarket.

Write down the ratio of the total price to the weight of each food, find the value and fill in the form completely.

The first column: 12.8: 2 = 6.4

Column 2: 36: 1.2 = 30

The third column:19.2:1.6 =12