Question

The sum of (4/5 + 25/15 - 10) + 21/45 is? Solve and answer in mixed fraction

Answer 1

4/5 + 25/15 - 10/1 +21/45
we can simplify 25/15 as 5/3.
we can also classify 21/45 as 7/15.
now we should find the lcm of all the denominators.
LCM = 15
4/5 = 12/15 
5/3 = 25/15
10/1 = 150/15
7/15 = 7/15
add all
12/15+25/15+7/15-150/15
-106/15

Answer 2

hey dear



here is your answer



( 4 /5. + 25/ 15 -10 ) + 21 / 45


( take LCM 5 ,15 is 15 )


( 4*3 / 5*3 + 25 /15. - 10 *15 / 1*15 ) + 21 /45



( 12 /15 + 25 /15 -150 / 15 ) + 21 /45


-113 / 15. + 21 /45


(take lcm of 15 , 45 is 45 )



-113 * 3 / 15 *3. + 21 /45


- 339 / 45. + 21 /45


- 318 /45



in mixed fraction answer is - 7 whole 3 /45



hope it helps


thank you