2)
а)=17.56
б)=5 32/60+2 35/60=7 7/60=8 7/60
в)=8/9*99/16=11/2=5 1/2
г)=12.345:2.5=4.938
3) 3 7/16 : 5/8 = 55/16*8/5=11/2=5 1/2
4) a) x=16 1/3-12.625
x=16 1/3-12/5/8=16 8/24-12 15/24
x=3 17/24
б) х=0.64:4/15
x=16/25*15/4
x=12/5=2 2/5
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2)
а)=17.56
б)=5 32/60+2 35/60=7 7/60=8 7/60
в)=8/9*99/16=11/2=5 1/2
г)=12.345:2.5=4.938
3) 3 7/16 : 5/8 = 55/16*8/5=11/2=5 1/2
4) a) x=16 1/3-12.625
x=16 1/3-12/5/8=16 8/24-12 15/24
x=3 17/24
б) х=0.64:4/15
x=16/25*15/4
x=12/5=2 2/5