Question

Oblicz. a) 14/30 + 2 1/6 - b) 2 1/9 + 7 4/45 = c) 3 7/18 + 5 5/12= d) 4 7/15 + 5 11/20= e) 3 1/4 - 1 1/2 = f) 43/14 - 2 8/35 = g) 3 1/4 - 2 5/18 = h) 6 1/16 - 2 9/40=

Proszę. Pomóżcie. To na jutro. Daje naj ;))

Answer 1

A ) 14/30 + 2 i 1/6 =14/30+25/30=2 19/30
b) 2 i 1/9 + 7 i 4/45 =2 5/45+7 4/45=9 9/45=9 1/5
c) 3 i 7/18 + 5 i 5 / 12 =3 14/36+5 15/36=8 29/36
d) 4 i 7 / 15 + 5 i 11/20 =4 28/60+5 33/60=9 61/60=10 1/60
e) 3 i 1/4 - 1 i 1/2 =3 1/4-1 2/4=2 5/4-1 2/4=1 3/4
f) 4 i 3/14 - 2 i 8 / 35 =4 15/70-2 16/70=3 85/70-2 16/70=1 69/70
g) 3 i 1/4 - 2 i 5/18 =3 9/36-2 10/36=2 45/36-2 10/36=35/36
h) 6 i 1/16 - 2 i 9/40 = 6 5/80-2 18/80=5 85/80-2 18/80=3 67/80