Calculate the Sum: 4⅔ + 2⅖ + 3⅓ + 1⅗ Mixed Number Addition

Question

423+227+313+137=? 4\frac{2}{3}+2\frac{2}{7}+3\frac{1}{3}+1\frac{3}{7}=\text{?}

Video Solution

Solution Steps

00:00 Solve
00:03 Let's arrange the equation so it will be easier to solve
00:15 Let's solve each addition separately and then sum up
00:24 Let's break down the addition into whole numbers addition and fractions addition
00:29 This is the result of the left-side addition
00:33 Now let's solve the right-side addition using the same method
00:39 Let's break down the addition into whole numbers addition and fractions addition
00:49 This is the result of the left-side addition
01:00 And this is the solution to the question

Step-by-Step Solution

Given that this is an exercise with only addition operation, we can change the order of the numbers.

We organize the exercise in a way that we can obtain a pair that gives us an integer.

Keep in mind that there is a pair of fractions that if we add them we will obtain an integer:

423+313+227+137= 4\frac{2}{3}+3\frac{1}{3}+2\frac{2}{7}+1\frac{3}{7}=

We solve the exercise from left to right:

423+313= 4\frac{2}{3}+3\frac{1}{3}=

4+3=7 4+3=7

23+13=33=1 \frac{2}{3}+\frac{1}{3}=\frac{3}{3}=1

7+1=8 7+1=8

Now we obtain the exercise:

8+227+137= 8+2\frac{2}{7}+1\frac{3}{7}=

We leave the 8 aside and add the rest of the exercise:

227+137= 2\frac{2}{7}+1\frac{3}{7}=

2+1=3 2+1=3

27+37=57 \frac{2}{7}+\frac{3}{7}=\frac{5}{7}

Now we obtain the exercise:

8+3+57=1157 8+3+\frac{5}{7}=11\frac{5}{7}

Answer

1157 11\frac{5}{7}