oblicz ułamki 2 1/2 + 1,27= 0,65:6 1/2= 4,5-3/4x1/3= (1 2/5+0,5):2= 5/8x4,2-1/4= 4/7x(0,2+1/4=

2 i 1/2 + 1,27= 2 i 5/10 + 1,27= 2,5 + 1,27= 3,77 lub 2 i 1/2 + 1,27= 2 i 1/2 + 1 i 27/100 = 2 i 50/100 + 1 i 27/100 = 3 i 77/100 0,65:6 i 1/2= 0,65 : 6 i 5/10 = 0,65 : 6,5 = 0,1 lub 0,65 : 6 i 1/2 = 65/100 : 13/2 = 65/100 * 2/13= 5/50 * 1/1= 5/50 = 1/10 4,5-3/4* 1/3= 4,5 - 1/4 * 1/1= 4,5 - 1/4= 4,5 - 25/100 = 4,5 - 0,25= 4,25 lub 4,5 - 3/4 * 1/3 = 4 i 5/10 - 1/4 * 1/1= 4 i 1/2 - 1/4= 4 i 2/4 - 1/4= 4 i 1/4 (1 i 2/5+0,5):2= (1 i 4/10 + 0,5) : 2= (1,4 + 0,5) : 2= 1,9 : 2= 0,95 lub (1 i 2/5 + 0,5) : 2 = (1 i 4/10 + 5/10) : 2 = 1 i 9/10 : 2 = 19/10 * 1/2 =  19/20 5/8 * 4,2-1/4= 625/1000 * 4,2 - 25/100 = 0,625 * 4,2 - 0,25= 2,625 - 0,25= 2,375 lub 5/8 * 4,2 - 1/4= 5/8 * 4 i 2/10 - 1/4= 5/8 * 4 i 1/5 - 1/4= 5/8 * 21/5 - 1/4= 1/8 * 21/1 - 1/4= 21/8 - 1/4= 2 i 5/8 - 2/8= 2 i 3/8 4/7 *(0,2+1/4)= 4/7 * (2/10 + 1/4) = 4/7 * (4/20 * 5/20) = 4/7 * 9/20 = 1/7 * 9/5= 9/35

oblicz ułamki 2 3/20+1,27= 0,65:6 1/2= 4,5-3/4x1/3= (1 2/5+0,5):2= 5/8x4,2-1/4= 4/7x(0,2+1/4)=

oblicz ułamki 2 3/20+1,27= 0,65:6 1/2= 4,5-3/4x1/3= (1 2/5+0,5):2= 5/8x4,2-1/4= 4/7x(0,2+1/4)=...