Вычислите: 1) 22 * 7/11 - 22 * 6/11 2) 12/19 * 23/15 - 12/19 * 4/15 3) 47/66 * 1/2 -...

Question

Вычислите: 1) 22 * 7/11 - 22 * 6/11 2) 12/19 * 23/15 - 12/19 * 4/15 3) 47/66 * 1/2 - 25/66 * 1/2

Answer 1

1. 22*7/11-22*6/11=2/1*7/1-2/1*6/1=14-12=2
2. 12/19*23/15-12/19*4/15=92/95-16/95=76/95
3. 47/66 * 1/2 - 25/66 * 1/2=47/132-25/132=22/132=11/66