Question

2/5+1 83/100= 6 4/10-3/20= 9 8/10×3/10= 7 2/10÷1/100=

Answer 1

Ответ:

Пошаговое объяснение:

2/5+1 83/100=40/100+1 83/100=

2 23/100

6 4/10-3/20=6 8/20-3/20=6 1/4

9 8/10×3/10=98/10*3/10=294/100=

2 47/50

7 2/10÷1/100=72/10*100=720

Answer 2

Пошаговое объяснение:

2/5+1 83/100=2 23/100

6 4/10-3/20=6 1/4

9 8/10×3/10=2 47/50

7 2/10÷1/100=720

Answer 3

Let's solve each of these arithmetic expressions step by step:

1. 2/5 + 1 83/100: To add fractions, we need to find a common denominator. The common denominator for 5 and 100 is 100.

2/5 can be converted to 40/100 (by multiplying both numerator and denominator by 20). 1 83/100 remains the same.

Now, add the two fractions: 40/100 + 1 83/100 = (40 + 183) / 100 = 223 / 100

The result is: 2 23/100.

2. 6 4/10 - 3/20: First, convert the whole number to an improper fraction: 6 4/10 = (6 * 10 + 4) / 10 = 64/10.

Now, find a common denominator for 10 and 20, which is 20.

64/10 can be converted to 320/20 (by multiplying both numerator and denominator by 2). 3/20 remains the same.

Now, subtract the two fractions: 320/20 - 3/20 = (320 - 3) / 20 = 317 / 20

The result is: 15 17/20.

3. 9 8/10 × 3/10: First, convert the whole number to an improper fraction: 9 8/10 = (9 * 10 + 8) / 10 = 98/10.

Now, multiply the fractions: 98/10 × 3/10 = (98 * 3) / (10 * 10) = 294 / 100

The result is: 2 94/100, which can be simplified to 2 47/50.

4. 7 2/10 ÷ 1/100: First, convert the whole number to an improper fraction: 7 2/10 = (7 * 10 + 2) / 10 = 72/10.

Now, divide the fractions: 72/10 ÷ 1/100 = (72/10) × (100/1) = (72 * 100) / (10 * 1) = 7200 / 10

The result is: 720.

So, the solutions to the given expressions are as follows:

1. 2/5 + 1 83/100 = 2 23/100
2. 6 4/10 - 3/20 = 15 17/20
3. 9 8/10 × 3/10 = 2 47/50
4. 7 2/10 ÷ 1/100 = 720