Question

11/15-3/5, 3/20+7/15, 2/9+5/12, 13/16-7/12, 9/14-5/21

Answer 1

Ответ:

Пошаговое объяснение:

11/15-3/5 = 11/15 - 9/15 = 2/15

3/20+7/15 = 9/60 + 28/60 = 37/60

2/9+5/12 = 8/36 + 15/36 = 23/36

13/16-7/12 = 39/48 - 28/48 = 11/48

9/14-5/21 = 54/84 - 20/84 = 34/84 = 17/42

Answer 2

Ответ:

1)11/15-3/5=11/15-9/15 =2/15

2)3/20+7/15=9/60+28/60=37/60

3)2/9+5/12=8/36+15/36=23/36

4)13/16-7/12=39/48-28/48=11/48

5)9/14-5/21=27/42-10/42=17/42

Пошаговое объяснение:

Answer 3

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

1. (11/15) - (3/5): To subtract fractions, you need a common denominator. In this case, the common denominator is 15. (11/15) - (3/5) = (11/15) - (9/15) = (11 - 9)/15 = 2/15

2. (3/20) + (7/15): To add fractions, you need a common denominator. The common denominator in this case is 60 (LCM of 20 and 15). (3/20) + (7/15) = (9/60) + (28/60) = (9 + 28)/60 = 37/60

3. (2/9) + (5/12): To add fractions, you need a common denominator. The common denominator in this case is 36 (LCM of 9 and 12). (2/9) + (5/12) = (8/36) + (15/36) = (8 + 15)/36 = 23/36

4. (13/16) - (7/12): To subtract fractions, you need a common denominator. The common denominator in this case is 48 (LCM of 16 and 12). (13/16) - (7/12) = (39/48) - (28/48) = (39 - 28)/48 = 11/48

5. (9/14) - (5/21): To subtract fractions, you need a common denominator. The common denominator in this case is 42 (LCM of 14 and 21). (9/14) - (5/21) = (27/42) - (10/42) = (27 - 10)/42 = 17/42

So, the results are:

1. 2/15
2. 37/60
3. 23/36
4. 11/48
5. 17/42