Suppose you had the sum 3/4+1/8-5/6. First - make the fractions all the same... 3/4 = 6/8, so 6/8+1/8=7/8.
Next, you want to subtract 5/6. Again - make everything have the same denominator, so... 7/8 (from the previous sum) equals 21/24, and 5/6=20/24.
This gives you the final sum 21/24-20/24=1/24
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Make the fractions equivalent then subtract
no, to add and subtract like and unlike fractions the denominator has to be the same,
In fractions, you can NEVER add or subtract
Because you can't add or subtract fractions that have different denominators. Making them like fractions, by multiplying so the denominators are the same, you can add and/or subtract them.
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