a)1/4 *100%=100/4%=25%; 3/5*100%=300/5%=60%; 5/8*100%=500/8%= 62,5%; 9/20*100%=900/20%=90/2%=45% b) 1 1/2 =3/2*100%=300/2%=150%; 3 2/5 =17/5*100%=1700/5%=340%; 4 4/25=104/25*100%=10400/25%=416% c) 3,5 *100%=350%; 4 *100%=400%; 10*100%=1000% ; 250*100%=25000% d) 0,89 *100%=89%; 0,5 *100%=50%; 1,25 *100%=125%; 0,305*100%=30,5% Wyraź w procentach a) 3/4 *100%=300/4%=75%; 7/10 *100%=700/10%=70%; 13/25 *100%=1300/25%=52%; 0,15*100%=15% ; 1,4 *100%=140%; 3*100%=300% b) 1/2 *100%=100/2%=50%; 3/8*100%=300/8%=37,5% ; 0,75 *100%=75%; 3,2*100%=320% Zamień na procenty a) 2/3*100%=200/3%=66 ⅔%; 4/7 *100%=400/7%=57 1/7%; 1 5/6=11/6*100%=1100/6%= 183⅓%; 4 1/9 =37/9*100%=3700/9%=411 1/9%; 1/6 *100%=100/6%=16⅔%; 2 6/7=20/7*100%=2000/7%=285 5/7% b)6 1/11 =67/11*100%=6700/11%=609 1/11%; 33 1/3 =100/3*100%=10000/3%=3333⅓%; 11 1/9 =100/9*100%=10000/9%=1111 1/11%; 5 1/6 =31/6*100%=3100/6%=516⅔%; 28 4/7 =200/7*100%=20000/7%=2857 1/7%; 12 4/13=160/13*100%=16000/13%=1230 10/13%
a)4/8=0,5·100%=50% b)7/25=0,28·100%=28% c)9/4=2,25·100%=225% d)0,7·100%=70% e)0,25·100%=25% f)4,18·100%=418% g)0,025·100%=2,5% h)1 3/5=1,6·100%=160% i)1/3=0,(3)·100%=33,(3)% j)1/11=0,(09)·100%=9,(09)% k)4/9=0,(4)·100%=44,(4)% 5/6=0,8(3)·100%=83,(3)%
