Question

3 1/5 <--- tak zapisywać będę ułamki zwykłe:))

3 1/5 - 2,25=

2/15 * 0,75=

3 3/4 : 0,05=

8 3/4 + 1,125=

6,8 - 5 1/4

Answer 1

3 1/5 - 2,25=3,2-2,25=0,95=95/100=19/20

 

2/15 * 0,75=2/15*3/4=6/60=1/10

 

3 3/4 : 0,05=3 3/4:5/100=3 3/4:1/20=15/4:1/20=15/4*20=300/4=75

 

8 3/4 + 1,125=8,75+1,125=9,875=9875/1000=79/8=9 7/8

 

6,8 - 5 1/4=6,8-5,25=1,55=155/100=31/20=1 11/20

Answer 2

3 1/5 - 2,25 = 3,20-2,25=0,95
2/15 * 3/4= 8/45 * 30/45 = 240/2025
3 3/4: 5/100 = 15/4 * 100/5 = 3 * 25 = 75
8 3/4 + 1,125 = 8,750 + 1,125 =9,875
6,8 - 5 1/4 = 6,80 - 5,25 = 1,55
chyba dobrze xd