Question

3/5 + 4/7 = 5/7 - 1/9 = 3/4 + jedna cala 1/6 = 5/9-1/6= dwie całe 1/2+ jedna cała 2/3 = jedna cała 2/3 * dwie całe 1/2 - jedna cala 1/5

Answer 1

3/5 +4/7 = 21/35 + 20/35 = 41/35 = 1 i 6/35

 

5/7 - 1/9 = 45/63 - 7/63 = 38/63

 

3/4 + 1i1/6= 9/12 + 1i2/12= 1 i 11/12

 

5/9 - 1/6 = 10/18 - 3/18 = 7/18

 

2i1/2 + 1i2/3= 2i3/6 + 1i4/6= 3 i 7/6= 4i1/6

 

1i2/3 * 2i1/2 -1i1/5= 5/3 * 5/2 - 1i1/5= 25/6 -1i1/5 = 4i1/6 -1 i1/5=

= 4 i 5/30 - 1 i 6/30 = 3 i35/30 - 1i6/30 = 2 i 29/30