21
4
+
31
2
−
21
3
Write the problem as a mathematical expression.
21
4
+
31
2
−
21
3
Find the common denominator.
Tap for more steps...
21
⋅
3
12
+
31
⋅
6
12
−
21
⋅
4
12
Combine fractions with similar denominators.
21
⋅
3
+
31
⋅
6
−
21
⋅
4
12
Multiply
21
by
3
.
63
+
31
⋅
6
−
21
⋅
4
12
Multiply
31
by
6
.
63
+
186
−
21
⋅
4
12
Multiply
−
21
by
4
.
63
+
186
−
84
12
Reduce the expression
63
+
186
−
84
12
by cancelling the common factors.
Tap for more steps...
21
+
62
−
28
4
Simplify the numerator.
Tap for more steps...
55
4
Set up the division problem in long division format.
4
5
5
Divide
5
by
4
. Place this digit in the quotient on top of the division symbol.
1
4
5
5
Multiply the newest quotient digit
(
1
)
by the divisor
4
.
1
4
5
5
−
4
Subtract
4
from
5
.
1
4
5
5
−
4
1
Bring down the next number of the dividend.
1
4
5
5
−
4
1
5
Divide
15
by
4
. Place this digit in the quotient on top of the division symbol.
1
3
4
5
5
−
4
1
5
Multiply the newest quotient digit
(
3
)
by the divisor
4
.
1
3
4
5
5
−
4
1
5
−
1
2
Subtract
12
from
15
.
1
3
4
5
5
−
4
1
5
−
1
2
3
The result of division of
55
4
is
13
with a remainder of
3
.
13
3
4
Upgrade to Premium to get the steps on every problem!
Upgrade Now
