zamień ułamki dziesiętne na ułamki zwykłe i oblicz 0,75- 4/7= 4 1/3 : 0,26= 3,6 x 1 7/9= oblicz 1,5+4x1/4= 3/5 : ( 2x0,5)=

0,75 - 4/7 = 3/4 - 4/7 = 21/28 - 16/28 = 5/28 4 i 1/3 : 0,26 = 13/3 : 13/50 = 13/3 · 50/13 = 50/3 = 16 i 2/3 3,6 · 1 i 7/9 = 3 i 3/5 · 1 i 7/9 = 18/5 · 16/9 = 32/5 = 6 i 2/5 Oblicz 1,5 +4 ·1/4 = 1,5+1=2,5 3/5 :(2·0,5) = 3/5 : 1 = 3/5

0,75 - 4/7 = 3/4 - 4/7 = 21/28 - 16/28 = 5/28 4 1/3:0,26=13/3:26/100=13/3×100/26=1/3×100/2 = 100/6 = 16 4/6 = 16 2/3 3,6 × 1 7/9 = 36/10 × 16/9 = 4/5 × 8/1 = 32/5 = 6 2/5 1,5 + 4 × 1/4= 1,5 + 1 = 2,5 3/5 : (2×0,5) = 3/5 : 1 = 3/5