Вычислите:

1/2+3/4=

1 целых2/3+3 цнлых4/6=

2 целых2/5*10/12=

5/6:10/36=

(3/4-1/2) * 4/5+25/16:5/4 =

1/2+3/4=2/4+3/4=5/4=1 1/4

1 2/3+3 4/6=1 4/6+3 4/6=4 8/6=5 2/6=5 1/3

2 2/5*10/12=12/5*10/12=2

5/6:10/36=5/6*36/10=6/2=3

(3/4-1/2) * 4/5+25/16:5/4=5 9/20

1) 3/4-1/2=3/4-2/4=1/4

2) 1/4*4/5=1/5

3) 25/16:5/4=25/16*4/5=5/4=1 1/4

4) 1/5+1 1/4=4/20+1 5/20=5 9/20