Question

A) 5 1/4•4/7= b) 3 3/7:1 1/5= c)7/8•10•9 3/5= d)3 7/9+4,2= e)6,32-1 3/5= f)2 1/3•3,6= g)3 7/20:0,125=

Answer 1

a) 5i1/4 * 4/7= 21/4 * 4/7= 3/1 *1/1 = 3

 

b) 3i3/7 : 1i1/5= 24/7 : 6/5= 24/7 * 5/6 = 4/7 * 5/1= 20/7 = 2i6/7

 

c) 7/8 *10 * 9i3/5= 70/8 * 48/5 = 14/1 *6/1 = 84

 

d) 3i7/9 + 4,2 = 3i7/9 + 4 i1/5 = 3i35/45 + 4i9/45 = 7i 44/45

 

e) 6,32 - 1i3/5 = 6,32 - 1,6 = 4,72

 

f) 2i1/3 * 3,6 = 7/3  * 3i3/5 = 7/3 *18/5= 7/1 *6/5= 42/5 = 8i2/5

 

g) 3i7/20 : 0,125 = 3,35 : 0,125 = 26,8