Выполните действие 0 ,35 - 1 /20 , 1/15 - 1 / 30 , 3 /10 - 2 / 15 , 1/6 + 8/9, 3/5 + 0 , 4 , 23 /45 + 13/30 , 1/4 + 0,5 ,3/4 + 1/6 ,13/14 - 5/42 , 1/8 - 1,16 , 7/12 + 11/18

1) 0,35 - 1/20 = 35/100 - 1/20 = 35/100 - 5/100 = 30/100 = 0,3
2) 1/15 - 1 / 30 = 2/30 - 1/30 = 1/300
3) 3 /10 - 2 / 15 = 9/30 - 4/30 = 5/30 = 1/6
4) 1/6 + 8/9 = 3/18 + 16/18 = 19/18 = 1 1/18
5) 3/5 + 0 , 4 = 3/5 + 4/10 = 6/10 + 4/10 = 10/10 = 1
6) 23 /45 + 13/30 = 46/90 + 39/90 = 85/90 = 17/18
7) 1/4 + 0,5 = 1/4 + 5/10 = 5/20 + 10/20 = 15/20 = 3/4
8) 3/4 + 1/6 = 9/12 + 2/12 = 11/12
9) 13/14 - 5/42 = 39/42 - 5/42 = 34/42 = 17/21
10) 1/8 -1,16 = 1/8 -116/100 = 1/8 - 29/25 = 25/200 - 232/200 = -207/200 = -1,035
11)  7/12 + 11/18  = 21/36 + 22/36 = 33/36 = 11/12

1)0.35 - 1/20 = 35/100 - 1/20=35/100 - 5/100=30/100=3/10=0,3
2)1/15-1/30=2/30-1/30=1/30
3)3/10-2/15=9/30-4/30=5/30=1/6
4)1/6+8/9=3/18+16/18=19/18=1 1/18
5)3/5+0,4=3/5+4/10=6/10+4/10=10/10=1
6)23 /45 + 13/30=46/90 + 39/90=85/90 =17/18
7)1/4 + 0,5=14 + 5/10=5/20 + 10/20=15/20=3/4 = 0.75
8)3/4 + 1/6=9/12 + 2/12=11/12
9)3/14 - 5/42=9/42 - 5/42 = 4/42=2/21
10)1/8 -1,16= 1/8 - 1 16/100=1 + 1/8 - 16/100 = -1 + 25/200 - 32/200= -1 7/200= -1.035
11)7/12+11/18=21/36 + 22/36=43/36=1 7/36