797.

ա) +68/84
բ) + 200/320
գ) +150/513
դ) +106/45
ե) +1/5
զ) +391/200
798.
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ա) -45/70
բ) -1344/567
գ) -490/945
դ) -630/1036
799.
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ա) + 4968/56
բ) +531/35
գ) +3843/250
դ) -272/63
800.

ա) <
բ) <
գ) >
դ) =
801.
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ա) +32/5
բ) +24/18
գ) +574/917
դ) +525/124
802.

ա) — 112/40
բ) -100/30
գ) -190/76
դ) -1134/2387
803.
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ա) <
բ) >
գ) <
դ) =