Question

What expression is equivalent of 3 3/4 + 1 1/2

Answer 1

Answer: 5 1/4=21/4

Explanation:

3 3/4 +1 1/2

Need to find the common denominator for 1 1/2

Multiply by 2 for denominator and numerator for 1 1/2

=3 3/4+ 1 2/4

=4 6/4

= 5 2/4

= 5 1/5

Even though there is no multiple choice. I still know the answer.

Answer 2

For this case we must find an expression equivalent to:

`3 \frac {3} {4} +1 \frac {1} {2}`

We have to:

`3 \frac {3} {4} = \frac {4 * 3 + 3} {4} = \frac {15} {4}\\1 \frac {1} {2} = \frac {2 * 1 + 1} {2} = \frac {3} {2}`

Rewriting the expression:

`\frac {15} {4} + \frac {3} {2} = \frac {2 * 15 + 4 * 3} {8} = \frac {30 + 12} {8} = \frac {42} { 8} = \frac {21} {4}`

If we convert to a mixed number we have:

`5 \frac {1} {4}`

ANswer:

`5 \frac {1} {4} = \frac {21} {4}`