Question

Iloczyn liczb 1 5/16 i 2 2/35
a) zmniejsz o 2 3/5
b)zwiększ o 3 4/15
c)zwiększ 6 2/3 raza.

Answer 1

Iloczyn liczb
1 5/16 * 2 2/35 = 21/16 * 72/35 = 3/2 * 9/5 = 27/10 = 2,7
a)
27/10 - 2 3/5 = 27/10 - 13/5 = 27/10 - 26/10 = 1/10 = 0,1
b)
27/10 + 3 4/15 = 2/10 + 49/15 = 6/30 + 98/30 = 104/30 = 3 14/30 = 3 7/15
c)
27/10 * 6 2/3 = 27/10 * 20/3 = 9 * 2 = 18