before we begin let's get in some relevant Hebrew vocabulary so that we are advancing our Hebraic education in every circumstance
Fraction
5eVeR Pa5u9 שבר פשוט
Formula
NuXCaH נוסחה
Formula:
Leave me/change me/turn me over
Becomes
1/2 × 6/1= 6/2=3
FURTHER DETAIL
Step 1. Turn the second fraction upside down (the reciprocal):
1/6 becomes 6/1
Step 2. Multiply the first fraction by that reciprocal:
1/2 × 6/1=1×6/2×1=6/2
Step 3. Simplify the fraction:
6/2=3
Fractions and Whole Numbers
What about division with fractions and whole numbers?
Make the whole number a fraction, by putting it over 1.
Example: 5 is also 5/1
Then continue as before.
Example:
2/3÷5
Make 5 into 5/1 :
2/3÷5/1
Step 1. Turn the second fraction upside down (the reciprocal):
5/1 becomes 1/5
Step 2. Multiply the first fraction by that reciprocal:
2/3×1/5=2 × 1/3 × 5=2/15
Step 3. Simplify the fraction:
The fraction is already as simple as it can be.
Answer = 2/15
Why Turn the Fraction Upside Down?
Because dividing is the opposite of multiplying!
So instead of dividing by a fraction, it is easier to turn that fraction upside down, then do a multiply.
No comments:
Post a Comment