Question

Вычислите произведение а)15/49*14,б)11/36*27,в)18*13/48,г)24*35/56,д)25*7/30,е)32*11/48,ж)13/15*6,з)7/20*15

Answer 1

15/49*14=15/(7*7) * (7*2)=(15*2)/7=30/7=4 2/7

11/36*27=11/(4*9) * (3*9)=(11*3)/4=33/4=8 1/4

18 * 13/48=(6*3) * 13/(6*8)=(3*13)/8=39/8=4 7/8

24 * 35/56=(8*3) * (7*5)/(8*7)=3*5=15

25 * 7/30=(5*5) * 7/(5*6)=(5*7)/6=35/6=5 5/6

32 * 11/48=(8*4) * 11/(8*6)=(4*11)/6=(2*11)/3=22/3=7 1/3

13/15 * 6=(13*2*3)/(3*5)=26/5=5 1/5

7/20 * 15=7/(4*5) * (5*3)=7*3/4=21/4=5 1/4