Answer:
200
Step-by-step explanation:
20% of a book = 40 pages
100% of a book = x pages
20/100 = 40/x Cross multiply
20x = 100*40 Combine the right
20x = 4000 Divide by 20
20x/20 = 4000/20 Do the division
x = 200 Answer
Answer:
Convert
3
1
4
to an improper fraction.
A mixed number is an addition of its whole and fractional parts.
3
+
1
4
−
1
3
4
Add
3
and
1
4
To write
3
as a fraction with a common denominator, multiply by
4
4
.
3
⋅
4
4
+
1
4
−
1
3
4
Combine
3
and
4
4
.
3
⋅
4
4
+
1
4
−
1
3
4
Combine the numerators over the common denominator.
3
⋅
4
+
1
4
−
1
3
4
Simplify the numerator.
Multiply
3
by
4
.
12
+
1
4
−
1
3
4
Add
12
and
1
.
13
4
−
1
3
4
Convert
1
3
4
to an improper fraction.
A mixed number is an addition of its whole and fractional parts.
13
4
−
(
1
+
3
4
)
Add
1
and
3
4
.
13
4
−
7
4
Combine the numerators over the common denominator.
13
−
7
4
Subtract
7
from
13
.
6
4
Cancel the common factor of
6
and
4
.
Factor
2
out of
6
.
2
(
3
)
4
Cancel the common factors.
Factor
2
out of
4
.
2
⋅
3
2
⋅
2
Cancel the common factor.
2
⋅
3
2
⋅
2
Rewrite the expression.
3
2
The result can be shown in multiple forms.
Exact Form:
3
2
Decimal Form:
1.5
Mixed Number Form:
1
1
2
Step-by-step explanation:
