Rozwiązane

Oblicz.
a) b)

3/4 x 1/5= 2 3/5 x 1 3/7 =
6/8x1/4 = 1 3/4 x 2 2/3=
5/8x1 1/3 = 1 5/6 x 2 4/7=
4/12x3 1/2 = 2 1/2 x 3 2/8=
3 1/6x5/12= 1 7/20 x 2 2/9=
4 1/8x3/9 = 4 8/11 x 5 2/4=



Odpowiedź :

3/4 x 1/5 = 3/20 = 0,15
2 3/5 x 1 3/7 = 13/5 * 10/7 = 130/35 = 3⁵/₇
6/8x1/4 = 6/32 = 3/16
1 3/4 x 2 2/3 = 7/4 * 8/3 = 56/12 = 4²/₃
5/8x1 1/3 = 5/8 * 4/3 = 20/24 = 5/6
1 5/6 x 2 4/7 = 11/6 * 18/7 = 198/42 = 4⁵/₇
4/12x3 1/2 = 4/12 * 7/2 = 28/24 = 1¹/₆
2 1/2 x 3 2/8 = 5/2 * 26/8 = 130/16 = 8¹/₈
3 1/6x5/12 = 19/6 * 5/12 = 95/72 = 1²³/₇₂
1 7/20 x 2 2/9 = 27/20 * 20/9 = 540/180 = 3
4 1/8x3/9 = 33/8 * 3/9 = 99/72 = 1³/₈
4 8/11 x 5 2/4 = 52/11 * 22/4 = 1144/44 = 26