Question

compare 1/5-2/7+3/4 and 1 1/2+4/5+2 5/7.Which is greater​

Answer 1

Answer:

11/2+4/5+2 5/7 is greater

Explanation:

In 1/5 - 2/7 + 3/4,

LCM= 140

So,

28/140 - 40/140 + 105/140 = 93/140 --------------(1)

In 11/2 + 4/5 + 2 5/7 2 5/7 = 19/7

LCM = 70

So,

385/70 + 50/70 + 190/70 = 625/70. => 15/2 ----------------(2)

Now, comparing (1) and (2),

LCM of 93/140 and 15/2 = 140.

So,

15/2=> 1050/140. (multiplying 15 by 70 to get 140 in the denominator)

So we get 11/+4/5+2 5/7 as the greater equation.

hope this helps...