(8 7/12- 2 17/36)*2,7 - 4 1/3 : 0,65= 9 5/6
1) 8 7/12-2 17/36=103/12-89/36=309/36-89/36=220/36=55/9
2) 55/9*2,7=55/9*27/10=33/2
3) 4 1/3:0,65=13/3:65/100=13/3*100/65=13/3*20/13=20/3
4) 33/2-20/3=99/6-40/6=59/6=9 5/6
(1 11/24+ 13/36) * 1,44 - 8/15 * 0,5625= -1 2/25
1) (1 11/24+13/36)=35/24+13/36=70/72+26/72=96/72=12/9=4/3
2) 4/3*1,44=4/3*144/100=48/25
3) 8/15*0,5625=8/15*5625/10000=375/1250=75/25
4)48/25-75/25=-27/25=-1 2/25
(6 8/15- 4 21/45)* 4,5 - 2 1/6 : 0,52= 5 2/15
1) 6 8/15-4 21/45=98/15-201/45=294/45-201/45=93/45=31/15
2) 31/15*4,5=31/15*45/10=93/10
3) 2 1/6:0,52= 13/6:52/100=13/6*100/52=50/12
4) 93/10-50/12=558/60-250/60=308/60=5 2/15
(9/22+1 12/33)*1,32-8/13*0,1625=2 6/25
1) 9/22+1 12/33=9/22+45/33=27/66+90/600=117/66=39/22
2) 39/22*1,32=39/22*132/100=234/100=117/50
3) 8/13*0,1625=8/13*1625/10000=125/1250=1/10
4) 117/50-1/10=117/50-5/50=112/50=2 12/50=2 6/25