Question

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Answer 1

3.
a)29/7 + 68/25 = (29·25+68·7)/175 = (725+476)/175 = 1201/175 = 6 intregi 151/175
b)797/50 - 174/11 = (797·11 - 174·50)/550 = (8767-8700)/550 = 67/550
c)-8/3 + 3 intregi 7/9 = -8/3 + 34/9 = (-8·3+34)/9 = 10/9 = 1 intreg 1/9
d)-8 intregi 8/90 - 52/9 = (-728)/90 - 52/9 = (-728-520)/90 = -1248/90 = -416/30 = -13,8(6)

4.
a)7/20
b)3/4
c)60/16 · 4/10 = 6/4 = 3/2
d)9/4 · 68/45 = 17/5

5.
a)7/16 · 16/9 = 7/9
b)-11/28 · 56/33 = -2/3
c)15/4 · (-12/35) = -9/7
d)(-24) · (-7/72) = 7/3

6.
a)14,63
b)-17,818
c)-5,6088
d)20,9934