a.) 4/5* 15/21* 7/12 = b.) 3i7/9 : 5 i 2/3 * 1i1/2 = c.) 4i2/7 * 1i2/5 : 1i5/7 = d.) (2i2/3 :1i7/9) * (2i1/2 : 5/6) = e.) 5/8 * 4 + 4 * 5/12 = f.) 1i4/5 :2 - 2i2/3 :4 = g.) (1i3/4 + 5/6) : (3i5/8 - 2i2/3) = h.) 2/3 * (3i1/3 - 1i5/6) = DAJĘ NAJ>>>>>

Zadanie w załączniku :)

a.) 4/5* 15/21* 7/12 = 1/1 * 3/3 * 1/3 = 1/3 b.) 3i7/9 : 5 i 2/3 * 1i1/2 = 34/9 : 17/3 * 3/2 = 34/9 * 3/17 * 3/2 = 2/3 * 1/1 * 3/2 = 1 c.) 4i2/7 * 1i2/5 : 1i5/7 = 30/7 * 7/5 : 12/7 = 6 * 7/12 = 7/2 = 3 1/2 d.) (2i2/3 :1i7/9) * (2i1/2 : 5/6) = (8/3 * 9/16) * (5/2 * 6/5) = 3/2 * 3 = 9/2 = 4 1/2 e.) 5/8 * 4 + 4 * 5/12 = 5/2 + 5/3 = 15/6 + 10/6 = 25/6 = 4 1/6 f.) 1i4/5 :2 - 2i2/3 :4 = 9/5 * 1/2 - 8/3 * 1/4 = 9/10 - 2/3 = 27/30 - 20/30 = 7/30 g.) (1i3/4 + 5/6) : (3i5/8 - 2i2/3) = (1 9/12 + 10/12) : (3 15/24 - 2 16/24) = = 29/12 : 23/24 = 29/12 * 24/23 = 58/23 = 12/23 h.) 2/3 * (3i1/3 - 1i5/6) =2/3 * (20/6 - 11/6) = 2/3 * 9/6 = 1/1 * 3/3 = 1