Question

найдите значения выражений
1)a+b-cпри a= 13; b=45; c=112
2)a-b+c ghb a=27; b =16; c=19

Answer 1

1) 1/3+ 4/5 - 1/12 = 20/60 + 48/60 - 5/60 = 68/60 - 5/60 = 1 1/20

2) 2/7 - 1/6+ 1/9 = 5/42 + 1/9 = 29/126