Question

Calculati:
Urgent! :)
a) 0,2×$\frac{5}{7}$ + $\frac{11}{14}$
b) $1\frac{2}{3}$ × $2\frac{2}{5}$ - $1\frac{1}{3}$
c) $( \frac{2}{3} )^{2}$ : $1\frac{1}{2}$
d) 0,(6) : 0,6 - $\frac{2}{3}$

Answer 1

a) 0,2× 5/7+11/14= 2/10× 5/7+11/14=1/7+11/14=(2+11)/14=13/14
b) 1 2/3 ×2 2/5-1 1/3=5/3×12/5 - 4/3 =4-4/3=(12-4)/3=8/3
c) (2/3)²:1 1/2 =4/9 :3/2=4/9 × 2/3=8/27
d) 0,(6) : 0,6 - 2/3=6/9:6/10-2/3=6/9 ×10/6-2/3= 10/9-2/3=(10-6)/9=4/9