is there manjeet1217 please answer my question toady is my exam
Answers
Answer:
i will give the answers of some of this questions
Step-by-step explanation:
1)2integer 2/3 × 5/12=
3×2+2/3×5/12
=8/3×5/12
8×5 and 3×12
40/36
10/9
Answer:
I am NOT manjeet1217 but I have tried my best to explain as best as I can:)
I have used the same method I explained in (a) and (b) for the rest of the questions if are confused.
Step-by-step explanation:
a)2 2/3 ×5/12=1 1/9
First we will convert 2 2/3 into a improper fraction,which will be 8/3(3×2+2)
Then the question will become 8/3×5/12 then
1.Either 8 and 12 can be cancelled with 4 and made as 2 and 3 then the question becomes
2/3×5/3=10/9 which can be converted to a mixed fraction 1 1/9
2.Or write it straight as 8/3×5/12=40/36 then reduce it to 10/9 =1 1/9
b)1 3/4×8/15=14/15
First we will convert 1 3/4 into a improper fraction,which will be 7/4(4×1+3)
Then the question will become 7/4×8/15 4 and 8 cancels and becomes 1 and 2 and the question becomes 7×2/15=14/15
c)12/25×6 2/3=12/25×20/3
=4/5×4=16/5
d)20×3 1/5=4×16=64
e)1 1/4×2 2/5=3
f)3 3/8×5 1/9=3/4×23
=69/4
g)5 1/7×5 1/9=4/7×46=184/7
h)8 1/8×28=65/2×7=455/7
=65(because 7×65=455)
9.Find
a)5/9 of 105
Ans)5/9×105
5/3×35=175/3
b)4/7 of 42
Ans)4/7×42
4×6=24
c)3/10 of 5/6
Ans)3/10×5/6
= 1/2×1/2=1/4
d)3/5 of 3 1/5
Ans)3/5×16/5
=12/5
Hope this helps you:)
And ALL THE VERY BEST FOR YOUR EXAM
Hope you score amazing marks:)