Question

Запиши в виде десятичных дробей смешаные числа 3 1/20 ; 2 3/50 ; 4 8/25; 7 11/20 ; 12 4/25; 9 13/50 Решите плиз

Answer 1

3 1/20 = 3 5/100 = 3,05
2 3/50 = 2 6/100 = 2,06
4 8/25=4 32/100 = 4,32
7 11/20 = 7 55/100 = 7,55
12 4/25 = 12 16/100 = 12,16
9 13/50 = 9 26/100 = 9,26

Answer 2

Converting Mixed Numbers to Decimal Fractions

To convert mixed numbers to decimal fractions, we need to convert the mixed numbers into improper fractions and then divide the numerator by the denominator. Let's convert the given mixed numbers into decimal fractions:

1. 3 1/20: - To convert 3 1/20 to an improper fraction, we multiply the whole number (3) by the denominator (20) and add the numerator (1). The result is the new numerator, and the denominator remains the same. - The improper fraction is (3 * 20 + 1) / 20 = 61/20. - To convert the improper fraction to a decimal fraction, we divide the numerator (61) by the denominator (20). - The decimal fraction is 61/20 = 3.05.

2. 2 3/50: - To convert 2 3/50 to an improper fraction, we multiply the whole number (2) by the denominator (50) and add the numerator (3). The result is the new numerator, and the denominator remains the same. - The improper fraction is (2 * 50 + 3) / 50 = 103/50. - To convert the improper fraction to a decimal fraction, we divide the numerator (103) by the denominator (50). - The decimal fraction is 103/50 = 2.06.

3. 4 8/25: - To convert 4 8/25 to an improper fraction, we multiply the whole number (4) by the denominator (25) and add the numerator (8). The result is the new numerator, and the denominator remains the same. - The improper fraction is (4 * 25 + 8) / 25 = 108/25. - To convert the improper fraction to a decimal fraction, we divide the numerator (108) by the denominator (25). - The decimal fraction is 108/25 = 4.32.

4. 7 11/20: - To convert 7 11/20 to an improper fraction, we multiply the whole number (7) by the denominator (20) and add the numerator (11). The result is the new numerator, and the denominator remains the same. - The improper fraction is (7 * 20 + 11) / 20 = 151/20. - To convert the improper fraction to a decimal fraction, we divide the numerator (151) by the denominator (20). - The decimal fraction is 151/20 = 7.55.

5. 12 4/25: - To convert 12 4/25 to an improper fraction, we multiply the whole number (12) by the denominator (25) and add the numerator (4). The result is the new numerator, and the denominator remains the same. - The improper fraction is (12 * 25 + 4) / 25 = 304/25. - To convert the improper fraction to a decimal fraction, we divide the numerator (304) by the denominator (25). - The decimal fraction is 304/25 = 12.16.

6. 9 13/50: - To convert 9 13/50 to an improper fraction, we multiply the whole number (9) by the denominator (50) and add the numerator (13). The result is the new numerator, and the denominator remains the same. - The improper fraction is (9 * 50 + 13) / 50 = 463/50. - To convert the improper fraction to a decimal fraction, we divide the numerator (463) by the denominator (50). - The decimal fraction is 463/50 = 9.26.

Therefore, the decimal representations of the given mixed numbers are: - 3 1/20 = 3.05 - 2 3/50 = 2.06 - 4 8/25 = 4.32 - 7 11/20 = 7.55 - 12 4/25 = 12.16 - 9 13/50 = 9.26