Fractions Page 4
Reciprocal of .50 Reciprocal of 1/13
1. 2 .50=50, 1/2(F)2/1=2 2. 13 1/13(F)13/1=13
Convert 24% to a fraction. A. 6/25 B. 1/25 C. 6/24 D. 1/24
A. 6/25. Always divide number by 100. 24 Divided by 100.
Change a mixed number into a improper fraction. Change to improper fraction#: 5 3/4
Answer: 23/4 Multiply whole number with the bottom, then add the top number. -How to get that answer is to multiply 5x4 and add 3. Mixed numbers are the best answer on a test. But you cannot, do math problems with mixed numbers. You can do math problems with improper fractions.
Solve for top number, 15 divided by 3=5
Answer= 15 (3x5=15) -If you're trying to solve for the number 3 or 5 then divided the 15 into either number.
3 1/3 divided by 4 2/9
Answer=15/19
Solve for zx4=12
Answer=3 12 divide by 4=3 12/4=3
Solve for B, A divided by B=C
Answer=A divided by C=B A/C
Solve for A, A divided by B=C
Answer=BC(BxC)
One-fifth has the same value as? A. 5/10 B. 2/10 C. 5/1
B. 2/10 5/10=1/2 2/10=1/5 5/1=5
Change a % number to decimal?
Beyoncé Rule. Move decimal 2 spaces to the left. 9%= .09% 37%= .37% 6 1/2%= .065(The 1/2 is 5) 42 1/2%= .425
Solve for B, AB=C
C divided by A C/A
Which was created by squaring a number? A. 10 B. 18 C. 25
C. 25 square root 5.
What does Reduce Fractions mean? Reduce: 3/21. Reduce: 8/18.
Simplify to lowest terms. Think of a number that will divide into both Top & Bottom. 1. Answer: 1/7 (divide both by 3.) 2. Answer: 4/9(Both Even# can always divide by 2)
Multiplication X
Per of For each
3/4+5/7
(Add Fraction) Answer= 1 13/28 1. multiply bottom numbers, 4x7=28 2. multiply the top number by the opposite bottom number. 3x7=21, 4x5=20 3. add top number. 21/28+20/28, 21+20=41/28 4. Reduce fraction which since it's an improper fraction you would have to divide bottom by the top number 28 divided by 41=1 13/28
1/9 divided by 2/3
(Division Fraction) Answer=1/6 1. Same, Change, Flip 1/9x3x2 2. Multiply straight across.
3/7x14/15
(Multiplication problem) Answer=2/5 1. Reduce cross-ways. 1/1x2/5 2. Multiply straight across.1x2=2, 1x5=5; 2/5
3 1/2 - 2 7/8
(Subtract Fraction) Answer=5/8. 1. Can't do math with mixed numbers change to improper. 3x2+1=7/2 | 2x8+7=23/8 2. multiply bottom numbers, 2x8=16 3. multiply the top number by the opposite bottom number. 7x8=56, 23x2=46 4. Subtract top numbers, 56-46=10/46 5. Reduce problem divide both by 2, 10/16= 5/8
If a % number is in an AR problem, you should.
1. Always change it to a decimal. 2. Multiply it to solve the problem
Multiplying Fractions
1. Reduce cross-ways. 2. Multiply straight across top and bottom.
Solve for A, AB=C
C divided by B C/B
Change an improper fraction into a mixed number. Change to mixed#: 22/7.
Divide bottom into the top. Answer: 3 1/7. <-- Mixed# -Improper answer will be a fake answer.
What does Reciprocal mean? 1. Reciprocal of: 3/13? 2. Reciprocal of: 5 2/3? 3. Reciprocal of: .25? 4. Reciprocal of any whole number is? EX: 13
Flip the fraction. Answers: 1. 4 1/3. 2. 3/17. 3. 4. Think of a Quarter,1/4(F)4/1=4 4. 1/13.
Add & Subtract Fractions
Multiply the denominators, change top numbers, add & subtract the top numbers. 1. Same Denominator. 2. Change top numbers. 3. Add or Subtract the top numbers. 4. Simplify the fraction. Pg. 4, Number 9
Divide Fractions
Same, Change, Flip. 1. First fraction keep the same. 2. The divide sign change to multiplication sign. 3. Flip the second fraction.
Any number can be divided by 5 if? A. It is an odd number. B. The last digit is 0 or 5. C. The sum of the digits is 5.
The last digit is 0 or 5.
