Question

1.Wykonaj mnożenie :
a) 2/3 * 1/7=
b)3/5*2/9=
c)1/3*9/10=
d)1 1/2* 1 1/7=
e)4/7 * 21/20=
f)25 * 5 2/5* 1 4/7 =

Answer 1

[tex] \frac{2}{3}* \frac{1}{7} = \frac{2}{21}, \frac{3}{5}* \frac{2}{9} = \frac{2}{15} , \frac{1}{3} * \frac{9}{10} = \frac{3}{10} , \frac{3}{2} * \frac{8}{7} = \frac{12}{7} , \frac{4}{7} * \frac{21}{20} = \frac{3}{5} , 25* \frac{27}{5} * \frac{11}{7} = 212 1/7

Answer 2

A) 2/3*1/7=2/21
b) 3/5*2/9=6/45
c) 1/3*9/10=9/30=3/10
d) 1 1/2 * 1 1/7= 3/2*8/7=24/14=12/7
e) 4/7*21/20=84/140=22/70=11/35
f) 25* 5 2/5* 1 4/7 = 25* 27/5 * 11/7 = 7425/35=212 5/35=212 1/7