Question

1. 1 1/3 x 2,7=

2. (3/4 - 1/5): 1/2=

3. 0,7+ 0,25x 8=

4. 4,8- 1 1/3+ 3,2- 1/7

5. (6,25- 2 1/2): 2 1/7- 1=

Na teraz pilne mega proszę! :/

Answer 1

1) 1 1/3* 2,7=4/3* 27/10=18/5= 3 3/5
2) (3/4-1/5):1/2=(15/20-4/20):1/2=11/20*2/1=11/10=1 1/10
3)0,7+0,25*8= 7/10+25/100*8= 7/10+50/25=7/10+2= 2 7/10
4)4,8- 1 1/3+ 3,2- 1/7=1008/210-70/210+672/210-30/210=1580/210=711/21
5)(6,25- 2 1/2): 2 1/7- 1=(625/100-5/2):15/7-1=(625/100-250/100)*7/15-1=175/100-1=1 75/100-1= 75/100= 3/4