you must first change the mixed fraction into improper
3×6+2=20 multiply the denominator(3) to the mixed number (6) and add it with the numerator(2)
20/3 + 4/5
in adding unlike terms you need to find the LCD
3 and 5 LCD's are
3,6,9,12,15
5,10,15
since their Lowest Common Denominator is 15 we need to find it's multiple which is 5 and 3
20 has a denominator of 3 so all it needs is 5 to be multiplied to 15 but you have to also multiply 5 to 20 the rules apply to the second fraction aswell
20(5)/3(5) + 4(3)/5(3) = multiply numerators and denominators
100/15 + 12/15 now both denominators or similar so we can add them = 112/15
Answers & Comments
Verified answer
Answer:
5 1/3
Step-by-step explanation:
6 2/3 x 4/5
20/3 x 4/5
80/15
16/3
5 1/3
Answer:
112/15
Step-by-step explanation:
6 2/3 + 4/5
you must first change the mixed fraction into improper
3×6+2=20 multiply the denominator(3) to the mixed number (6) and add it with the numerator(2)
20/3 + 4/5
in adding unlike terms you need to find the LCD
3 and 5 LCD's are
3,6,9,12,15
5,10,15
since their Lowest Common Denominator is 15 we need to find it's multiple which is 5 and 3
20 has a denominator of 3 so all it needs is 5 to be multiplied to 15 but you have to also multiply 5 to 20 the rules apply to the second fraction aswell
20(5)/3(5) + 4(3)/5(3) = multiply numerators and denominators
100/15 + 12/15 now both denominators or similar so we can add them = 112/15