Examples with solutions for Special Cases (0 and 1, Inverse, Fraction Line): Using fractions

Exercise #1

7×1+12= ? 7\times1+\frac{1}{2}=\text{ ?}

Video Solution

Step-by-Step Solution

According to the order of operations, we first place the multiplication operation inside parenthesis:

(7×1)+12= (7\times1)+\frac{1}{2}=

Then, we perform this operation:

7×1=7 7\times1=7

Finally, we are left with the answer:

7+12=712 7+\frac{1}{2}=7\frac{1}{2}

Answer

712 7\frac{1}{2}

Exercise #2

63×1= ? \frac{6}{3}\times1=\text{ ?}

Step-by-Step Solution

According to the order of operations, we will solve the exercise from left to right since it only contains multiplication and division operations:

63=2 \frac{6}{3}=2

2×1=2 2\times1=2

Answer

2 2

Exercise #3

12+0+12= \frac{1}{2}+0+\frac{1}{2}= ?

Video Solution

Step-by-Step Solution

According to the order of operations, since the exercise only involves addition operations, we will solve the problem from left to right:

12+0=12 \frac{1}{2}+0=\frac{1}{2}

12+12=11=1 \frac{1}{2}+\frac{1}{2}=\frac{1}{1}=1

Answer

1 1

Exercise #4

12+0.50= \frac{1}{2}+0.5-0=

Video Solution

Step-by-Step Solution

According to the order of operations, we will solve the exercise from left to right.

12=0.5 \frac{1}{2}=0.5

0.5+0.5=1 0.5+0.5=1

10=1 1-0=1

Answer

1

Exercise #5

1×12:2 1\times\frac{1}{2}:2

Video Solution

Step-by-Step Solution

According to the rules of the order of operations, we should first solve the exercise from left to right since there are only multiplication and division operations present:

1×12=12 1\times\frac{1}{2}=\frac{1}{2}

12:2=14 \frac{1}{2}:2=\frac{1}{4}

Answer

1/4

Exercise #6

Solve the following exercise:

32×1×13= ? \frac{3}{2}\times1\times\frac{1}{3}=\text{ ?}

Video Solution

Step-by-Step Solution

According to the order of operations, we must solve the exercise from left to right since it contains only multiplication operations:

32×1=32 \frac{3}{2}\times1=\frac{3}{2}

32×13= \frac{3}{2}\times\frac{1}{3}=

Then, we will multiply the 3 by 3 to get:

12×1=12 \frac{1}{2}\times1=\frac{1}{2}

Answer

12 1\over2

Exercise #7

631= \frac{6}{3}-1=

Video Solution

Step-by-Step Solution

According to the order of operations rules, we must first solve the fraction:

63=2 \frac{6}{3}=2

Resulting in the following expression:

21=1 2-1=1

Answer

1 1

Exercise #8

12+85= \frac{12+8}{5}=

Video Solution

Step-by-Step Solution

Let's begin by multiplying the numerator:

12+8=20 12+8=20

We should obtain the fraction written below:

205 \frac{20}{5}

Let's now reduce the numerator and denominator by 5 and we should obtain the following result:

41=4 \frac{4}{1}=4

Answer

4 4

Exercise #9

Solve the following exercise:

14+0140= \frac{1}{4}+0-\frac{1}{4}-0=

Video Solution

Step-by-Step Solution

According to the order of operations rules, due to the fact that the exercise only involves addition and subtraction, we will solve the problem from left to right:

14+0=14 \frac{1}{4}+0=\frac{1}{4}

1414=0 \frac{1}{4}-\frac{1}{4}=0

00=0 0-0=0

Answer

0 0

Exercise #10

202+3+6=? \frac{20}{2+3}+6=\text{?}

Video Solution

Step-by-Step Solution

According to the order of operations, we will first solve the fraction exercise:

203+2=205=4 \frac{20}{3+2}=\frac{20}{5}=4

4+6=10 4+6=10

Answer

10 10

Exercise #11

2016102=? 20-\frac{16-10}{2}=\text{?}

Video Solution

Step-by-Step Solution

According to the order of operations, we will first solve the fraction exercise:

16102=62=3 \frac{16-10}{2}=\frac{6}{2}=3

203=17 20-3=17

Answer

17 17

Exercise #12

Solve the following problem:

1126=? \frac{1\frac{1}{2}}{6}=\text{?}

Video Solution

Step-by-Step Solution

Let's first look at the numerator of the fraction. We will convert it to an addition exercise containing two fractions:

1+12 1+\frac{1}{2}

1=22 1=\frac{2}{2}

This leaves us with:

22+126= \frac{\frac{2}{2}+\frac{1}{2}}{6}=

2+126= \frac{\frac{2+1}{2}}{6}=

3261= \frac{\frac{3}{2}}{\frac{6}{1}}=

Let's now multiply the two fractions togethernumerator by numerator and denominator by denominator:

1×32×6= \frac{1\times3}{2\times6}=

312=33×4 \frac{3}{12}=\frac{3}{3\times4}

Finally, simplify:

33×4=14 \frac{3}{3\times4}=\frac{1}{4}

14=0.25 \frac{1}{4}=0.25

Answer

0.25 0.25

Exercise #13

25+459=? 25+\frac{45}{9}=\text{?}

Video Solution

Step-by-Step Solution

According to the order of operations, first we'll solve the fraction:

459=5 \frac{45}{9}=5

25+5=30 25+5=30

Answer

30 30

Exercise #14

3434=? \frac{\frac{3}{4}}{\frac{3}{4}}=\text{?}

Video Solution

Step-by-Step Solution

We will use the formula:

aa=1 \frac{a}{a}=1

Therefore the answer is 1

Answer

1 1