Question

Oblicz 3 przykłady pomóżcie pliss!
1 2/3 + 2 3/4 +3 4/5 * ( 8 2/5 - 7 3 /20) =
2 2/3 * 6 1/4 - 3 1/4 : 3 5/8 + 0,625 =
4 4/5 : 1,6 * 1 7/8 - 1 5/8 + 2,25 =
: dzielenie

Answer 1

1 2/3 + 2 3/4 +3 4/5 * ( 8 2/5 - 7 3 /20) = 5/3+11/4+19/5*(42/5-143/20) = 20/12+33/12+19/5*(168/20-143/20) = 53/12+19/5*25/20 = 53/12+19/1*1/4 = 53/12+19/4 = 53/12+57/12 = 110/12 = 9 1/6

2 2/3 * 6 1/4 - 3 1/4 : 3 5/8 + 0,625 = 8/3*25/4 - 13/4*8/29 + 5/8 = 2/3*25 - 13*2/29 +5/8 = 50/30 - 26/29 + 5/8 = 1 2/3 - 26/29 + 5/8 = 145/87 - 78/87 + 5/8 = 67/87 + 5/8 = 536/695+435/695 = 971/695 = 1 276/695
 
4 4/5 : 1,6 * 1 7/8 - 1 5/8 +  2,25 = 24/5 * 10/16 * 15/8 - 13/8 + 9/4 =3/1 * 1/2 * 15/4 - 13/8 + 18/8 = 45/8 - 13/8+18/8 = 50/8 = 6 1/4