помогите вычислить дробь
1) 5 2/5 :1 1/3*2 1/5
2) 4 5/7:11+2 1/3 + 2 4/5* 2/7
1) 5 2/5 :1 1/3*2 1/5
2) 4 5/7:11+2 1/3 + 2 4/5* 2/7
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1) 5 2/5 :1 1/3*2 1/5= 12/5 : 4/3*11/5=12/5 ·3/4*11/5=9/5·11/5=99/25=3 24/252) 4 5/7:11+2 1/3 + 2 4/5* 2/7=33/7:11+2 1/3 + 14/5* 2/7=33/7·1/11+2 1/3 + 4/5=3/7+2 1/3 + 4/5=45/105+ 2 35/105+ 84/105=2 164/105=3 59 /105