1/2>60/n >1/3 60/n>1/3 n<180 </strong> 60/n<1/2 60<n/2 <strong>n>120
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60/121, 60/127, 60/131, 60/133, 60/137, 60/139, 60/143, 60/149,
60/151, 60/157, 60/161, 60/163, 60/167, 60/169, 60/173, 60/179
всего 16 дробей