We have to find the least common denominator (LCD) first since the fractions doesn't have the same denominator. The denominators are 7 and 3. Find the Least Common Multiple (LCM) of 7 and 3, that is 21. So, we'll change the denominators into 21.
Now, we have to change the numerators. To get the new numerators, we have to divide the new denominator to the old denominator then multiply the answer to the numerator then the product will be the new numerator.
Let's get the new numerator of 3 6/7..
21 (new denominator) ÷ 7 (old denominator) = 3
3 x 6 (numerator) = 18 (new numerator)
So, the new fraction will be 3 18/21
Do the same on the other fraction..
From 3 6/7 to 3 18/21 (First fraction)
From 1 2/3 to 1 14/21 (Second fraction)
Now, subtract.
3 18/21 - 1 14/21 = 2(subtract the whole numbers) 4 (subtract the numerators) /21 (copy the denominator)
Answers & Comments
Answer:
yung pangatlo hindi ko po alam
Step-by-step explanation:
paki correct nalang po kung mali
Verified answer
Answer:
4/5 - 1/2 = 3/10
3 6/7 - 1 2/3 = 2 4/21
5 3/4 - 2 2/5 = 3 7/20
Step-by-step explanation:
3 6/7 - 1 2/3
We have to find the least common denominator (LCD) first since the fractions doesn't have the same denominator.
The denominators are 7 and 3. Find the Least Common Multiple (LCM) of 7 and 3, that is 21. So, we'll change the denominators into 21.
Now, we have to change the numerators. To get the new numerators, we have to divide the new denominator to the old denominator then multiply the answer to the numerator then the product will be the new numerator.
Let's get the new numerator of 3 6/7..
21 (new denominator) ÷ 7 (old denominator) = 3
3 x 6 (numerator) = 18 (new numerator)
So, the new fraction will be 3 18/21
Do the same on the other fraction..
From 3 6/7 to 3 18/21 (First fraction)
From 1 2/3 to 1 14/21 (Second fraction)
Now, subtract.
3 18/21 - 1 14/21 = 2(subtract the whole numbers) 4 (subtract the numerators) /21 (copy the denominator)
The answer will be, 2 4/21
Sana gets mo, hihi.