Question

(-50,4:(-5 3/5 )+6,4-14 2/5:(-3 3/5 )

Answer 1

(-50,4÷(-5 3/5)+6,4)×14,4÷(-3 3/5)=-61,6
1)-50,4÷(-5 3/5)=50 2/5÷5 3/5=252/5×5/28=9/1×1/1=9
2)9+6,4=15,4
3)15,4×14,4=221,76
4)221,76÷(-3 3/5)=-221,76÷3,6=-61,6

(10,6-14/15)×6/7-(8/35-0,8)÷(-2 2/3)=8 1/14
1)10,6-14/15=10 6/10-14/15=10 3/5-14/15=10 9/15-14/15=9 10/15=9 2/3
2)8/35-0,8=8/35-8/10=8/35-4/5=8/35-28/35=-20/35=-4/7
3)9 2/3×6/7=29/3×6/7=29/1×2/7=58/7=8 2/7
4)-4/7÷(-2 2/3)=4/7÷8/3=4/7×3/8=1/7×3/2=3/14
5)8 2/7-3/14=8 4/14-3/14=8 1/14