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marinka9997777
@marinka9997777
September 2021
1
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найдите значение выражения 1/2+3/4-5/8, 2/3+1/6-1/2, 5/8-(2/3-5/12),
1/2+(3/5-1/3)
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azerkeda200000
В квадратных скобках дополнительный множитель дроби
1)1/2[4]+3/4[2]-5/8=4+6-5/8=5/8
2)2/3[2]+1/6-1/2[3]=4+1-3/6=2/6=1/3
3)5/8-(2/3[4]-5/12)=5/8-(8-5/12)=5/8[3]-3/12[2]=15-6/24=9/24=3/8
4)1/2+(3/5[3]-1/3[5])=1/2+(9-5/15)=1/2[15]+4/15[2]=15+8/30=23/30
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Answers & Comments
1)1/2[4]+3/4[2]-5/8=4+6-5/8=5/8
2)2/3[2]+1/6-1/2[3]=4+1-3/6=2/6=1/3
3)5/8-(2/3[4]-5/12)=5/8-(8-5/12)=5/8[3]-3/12[2]=15-6/24=9/24=3/8
4)1/2+(3/5[3]-1/3[5])=1/2+(9-5/15)=1/2[15]+4/15[2]=15+8/30=23/30