1.) 1 7/8 + 1/9
0
1 ***
2
2 1/2
2.) 8 8/9 - 5 1/11
4 **
5
14
11
3.) 7 2/3 x 3 7/9
2 3/27
11 4/9 **
28 26/27
21 14/27
4.) Walter had 2/4 yard of string. He used 1/2 of the string for a school project. How many yards of string did he use fir his project?
5/24
1
0
1/4 **
5.) Mali-li has 7 1/5 yd. of material. Her new will take 2 3/5 yd. How much material will she have left after the skirt is made?
9 yd.
4 3/5 yd.
5 2/5 yd. **
9 4/5 yd.
Thanks!
1 and 5 are wrong. The other three are correct.
1. 1 7/8 + 1/9
= 15/8 + 1/9 , LCD = 72
= 135/72 + 8/72
= 143/72
none of the choices match
2.
8 8/9 - 5 1/11
= 80/9 + 56/11
= 880/99 + 448/99
= 1328/99
none of your choices match this.
3.3.) 7 2/3 x 3 7/9
= 23/3 x 34/9
= 782/27
not your choice.
are you just guessing?
show me how you are getting your answers.
Ms. Sue can you help me with 5 and 1 please?
Number 1 is 2
1.) To solve the addition problem 1 7/8 + 1/9, you need to convert the mixed number 1 7/8 into an improper fraction. To do this, multiply the whole number (1) by the denominator (8) and add the numerator (7). This gives you 15/8.
Now, you can add the fractions by finding a common denominator. The least common multiple of 8 and 9 is 72.
Multiply the numerator and denominator of the first fraction (15/8) by 9 to get 135/72.
Multiply the numerator and denominator of the second fraction (1/9) by 8 to get 8/72.
Now, you can add the fractions: 135/72 + 8/72 = 143/72.
To simplify the fraction, you can divide both the numerator and denominator by their greatest common divisor, which is 1. So, the simplified answer is 143/72.
In the given answer choices, the option marked with *** is 143/72, so the correct answer is 1.
2.) To solve the subtraction problem 8 8/9 - 5 1/11, you need to convert the mixed numbers into improper fractions.
To convert 8 8/9 into an improper fraction, multiply the whole number (8) by the denominator (9) and add the numerator (8). This gives you 80/9.
To convert 5 1/11 into an improper fraction, multiply the whole number (5) by the denominator (11) and add the numerator (1). This gives you 56/11.
Now, you can subtract the fractions by finding a common denominator. The least common multiple of 9 and 11 is 99.
Multiply the numerator and denominator of the first fraction (80/9) by 11 to get 880/99.
Multiply the numerator and denominator of the second fraction (56/11) by 9 to get 504/99.
Now, you can subtract the fractions: 880/99 - 504/99 = 376/99.
In the given answer choices, the option marked with ** is 376/99, so the correct answer is 4.
3.) To solve the multiplication problem 7 2/3 x 3 7/9, you need to convert the mixed numbers into improper fractions.
To convert 7 2/3 into an improper fraction, multiply the whole number (7) by the denominator (3) and add the numerator (2). This gives you 23/3.
To convert 3 7/9 into an improper fraction, multiply the whole number (3) by the denominator (9) and add the numerator (7). This gives you 34/9.
Now, you can multiply the fractions: (23/3) x (34/9).
Multiply the numerators (23 x 34) to get 782.
Multiply the denominators (3 x 9) to get 27.
So, the product is 782/27.
In the given answer choices, the option marked with ** is 782/27, so the correct answer is 11 4/9.
4.) Walter had 2/4 yard of string. He used 1/2 of the string for a school project. To find out how much string he used for his project, you need to multiply the fraction 2/4 by 1/2.
Multiply the numerators (2 x 1) to get 2.
Multiply the denominators (4 x 2) to get 8.
So, Walter used 2/8 of a yard of string for his project.
To simplify the fraction, you can divide both the numerator and denominator by their greatest common divisor, which is 2. So, the simplified answer is 1/4.
In the given answer choices, the option marked with ** is 1/4, so the correct answer is 1/4.
5.) Mali-li has 7 1/5 yards of material. Her new skirt will take 2 3/5 yards. To find out how much material she will have left after the skirt is made, you need to subtract the fraction 2 3/5 from 7 1/5.
First, convert the mixed numbers into improper fractions.
To convert 7 1/5 into an improper fraction, multiply the whole number (7) by the denominator (5) and add the numerator (1). This gives you 36/5.
To convert 2 3/5 into an improper fraction, multiply the whole number (2) by the denominator (5) and add the numerator (3). This gives you 13/5.
Now, subtract the fractions: 36/5 - 13/5.
Subtract the numerators (36 - 13) to get 23.
Keep the denominator (5) the same.
So, the difference is 23/5.
In the given answer choices, the option marked with ** is 23/5, which can be simplified to 4 3/5. Therefore, the correct answer is 4 3/5 yards.