Выполните задание. Приведи дроби к общему знаменателю, равному произведению знаменателей
1/2и 1/3
2/3и3/4
1/5и 1/7
3/7 и2/9
3/11и2/5
9/10 и 7/13
4/11 и 11/13
3/17 и 2/7

1/2 и 1/3.

1/2 = 3/6, 1/3 = 2/6.
2/3 и 3/4.

2/3 = 8/12, 3/4 = 9/12.
1/5 и 1/7.

1/5 = 7/35, 1/7 = 5/35.
3/7 и 2/9.

3/7 = 27/63, /9 = 14/63.
3/11и 2/5.

3/11 = 15/55, 2/5 = 22/55.
9/10 и 7/13.

9/10 = 117/130, 7/13 = 70/130.
4/11 и 11/13.

4/11 = 42/143, 11/13 = 121/143.
3/17 и 2/7.

3/17 = 21/119, 2/7 = 34/119.