Question

Prosze o pomoc to na jutroPLISS a) 4 i 2/5+0,15=b) 12 i 1/4-6,7=c)9,25
prosze o pomoc to na jutro
PLISS
a) 4 i 2/5+0,15=
b) 12 i 1/4-6,7=
c)9,25-5 i 1/12
d) 14 i 4/7-2,7
e)7 i 2/5 +3 i 3/4- 5,7
f)8 i 1/2-6,32=2 i 3/8

Answer 1

a) 4 i 2/5+0,15= 22/5 + 15/100= 22/5 + 3/20= 88/20 + 3/20= 91/20 = 4 11/20
b) 12 i 1/4-6,7=49/4 - 67/10= 245/20 - 134/20= 111/20= 5 11/20
c)9,25-5 i 1/12= 925/100 - 61/12= 37/4 - 61/12= 111/12 - 61/12= 50/12= 4 1/6
d) 14 i 4/7-2,7= 102/7 - 27/10= 1020/70 - 189/70= 831/70= 11 61/70
e)7 i 2/5 +3 i 3/4- 5,7= 37/5 + 15/4= 148/20 - 75/20= 73/20= 3 13/20
f)8 i 1/2-6,32=2 i 3/8 
17/2 - 632/100= 850/100 - 632/100= 218/100 = 2 18/100 = 2 9/50