Выполните действие:

1) 1 целая 3/5 • 3/4 + 1 целая 3/8=

2) 13 целых 4/5 - 3 целых 1/5• 3 целых 3/4=

3) 1 целая 3/25•2 целых 1/7 - 2 целых 1/9• 27/190

4) 4 целых 7/12• 1 целая 3/11 + 1 целая 1/15• 45/64=

5) 15 целых 4/9-4 целых 4/9• 3 целых 3/8=

6) 81/88• (6-1 целая 13/15•1 целая 19/21) =

7) 5/16•4/5•9/25•5/9=

8) 19/25•40/57•5/36•

•9/16=

9) 2 целых2/3•1/5•3/4•10=

10) 18 целых 1/3• 1 целая 2/11•1 целая 4/5 •15=

1) = 8/5 * 3/4 + 1 3/8 = 6/5 + 1 3/8 = 48/40 + 1 15/40 = 48/40 + 55/40 = 103/40 = 2 23/40

2) = 10 3/5 * 3 3/4 = 53/5 * 15/4 = 159/4 = 39 3/4

3) = 28/25 * 15/7 - 19/9 * 27/190 = 12/5 - 3/10 = 24/10 - 3/10 = 21/10 = 2 1/10

4) = 55/12 * 14/11 + 16/15 * 45/64 = 35/5 + 3/4 = 7 + 3/4 = 7 3/4

5) = 11 * 27/8 = 297/88 = 3 33/88 = 3 3/8

6) = 81/88 * (6 - 28/15 * 40/21) = 81/88 * (6 - 32/9) = 81/88 * (6 - 3 5/9) = 81/88 * 2 4/9 = 81/88 * 22/9 = 9/4 = 2 1/4

7) = 1/4 * 1/5 = 1/20

8) = 8/15 * 5/64 = 1/24

9) = 8/3 * 1/5 * 3/4 * 10 = 2/1 * 2/1 = 4/1 = 4

10) = 55/3 * 13/11 * 9/5 * 15/1 = 65/3 * 9/5 * 15/1 = 39/1 * 15/1 = 585