Answer:
Explanation:
7-4=3
now let's change the denominator by finding the lcd (lowest common denominator)
factors of 3: 3, 6, 9, 12...
factors of 6: 6, 12, 18, 24...
both 3 and 6 has 6 as their lcd
3 x 2= 6
1/6 -4/6= -3/6
REDUCE
-1/2
3-1/2
2 1/2
2.5
You must ensure your fractions have common denominators. For this equation you must convert 2/3 into something over 6, so you will multiply 2/3 by 2 and end up with 4/6.
7-4=3, and 1/6-4/6=-3/6
3(18/6)-3/6=2.5(15/6) or if you have paper and pencil just subtract normally.
7 1/6-4 4/6=2 3/6, or 2.5
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