How to calculate 34 × (1 / 17 + 1 / 19) × 19 and 3 / 5 + [(1 / 5 + 1 / 3) △ 2 / 9]
How to calculate
34×(1/17+1/19)×19
The results are as follows
==19*34*1/17+19*34*1/19
==19*2+34
==38+34
==72
3/5+[(1/5+1/3)÷2/9]
The results are as follows
==3/5+8/15*9/2
==3/5+12/5
==15/5
==3
One in six: two in five equals one in two
Solution ratio,
(1/6):(2/5)=x/2
That is, (1 / 6) / (2 / 5) = x / 2
Multiply both sides by 4 / 5 to get 1 / 3 = 2x / 5
Multiply 15 on both sides to get 6x = 5
Divide both sides by 6 to get x = 5 / 6
Two and one in eight equals one and how many?
1 and 9 / 8
1 / 2 * 1 / 8 is equal to
One sixteenth