Question

Запишите в виде неправильной дроби число: 1) 1 1/2 2) 3 2/7 3) 5 12/25 4) 20 4/9

Answer 1

1) 3/2
2)23/7
3)137/25
4)184/9

Answer 2

1) 1 1/2 can be written as a mixed number, which means it has a whole number part and a fractional part. The whole number part is 1, and the fractional part is 1/2. To write it as a improper fraction, we need to convert the mixed number into a fraction. We do this by multiplying the whole number part (1) by the denominator of the fractional part (2), and then adding the numerator (1). This gives us (1 * 2 + 1) / 2 = 3/2. So, 1 1/2 as a improper fraction is 3/2.

2) 3 2/7 can also be written as a mixed number. The whole number part is 3, and the fractional part is 2/7. To convert it into an improper fraction, we multiply the whole number part (3) by the denominator of the fractional part (7), and then add the numerator (2). This gives us (3 * 7 + 2) / 7 = 23/7. So, 3 2/7 as an improper fraction is 23/7.

3) 5 12/25 can be written as a mixed number, with the whole number part being 5 and the fractional part being 12/25. To convert it into an improper fraction, we multiply the whole number part (5) by the denominator of the fractional part (25), and then add the numerator (12). This gives us (5 * 25 + 12) / 25 = 137/25. So, 5 12/25 as an improper fraction is 137/25.

4) 20 4/9 can be written as a mixed number, with the whole number part being 20 and the fractional part being 4/9. To convert it into an improper fraction, we multiply the whole number part (20) by the denominator of the fractional part (9), and then add the numerator (4). This gives us (20 * 9 + 4) / 9 = 184/9. So, 20 4/9 as an improper fraction is 184/9.