Question

Найдите произведение

a)5 3/16*25 b)8/19*19 d)1 3/8*2 c)3 7/19*19


Упростите выражение

a)3/4c*8 b)15*2/5a c)1 1/8d*16

Answer 1

a)5 3/16*25=83/16*25=(83*25)/16=2075/16=129 11/16=129,6875

b)8/19*19=(8*19)/19=(8*1)/1=8/1=8

d)1 3/8*2=11/8*2=(11*2)/8=(11*1)/4=11/4=2 3/4=2,75

c)3 7/19*19=64/19*19=(64*19)/19=(64*1)/1=64/1=64

a)3/4c*8=(3*8)/4c=24/4c=6/c

b)15*2/5a=(15*2)/5a=30/5a=6/a

c)1 1/8d*16=9/8d*16=(9*16)/8d=144/8d=18/d