Question

6 whole 7/10 - 4 whole 1/5​

Answer 1

Step-by-step explanation:

So it is mixed fractions , hence we must change it to improper fraction .

(6×10)+7 / 10 - (4 × 5)+1/5 =

that's is 67/10 - 21/5 =

then get the same denominators LCM .

that's is 10

67 × 1. 67

---- = ----

10. × 1. 10

21. × 2. 42

---- = ------

5 × 2. 10

then , subtract the numerator.

67 - 42 / 10 = 25/10

25/10 can be written as 5/2 or as decimal 2.5 .

Answer 2

{ [ (6 x 10) + 7 ] / 7 } - { [ (4 x 1) + 5 ] / 5 }
(67 / 7) - (9 / 5) [ LCM = 35 ]
[ (67 x 5) / (7 x 5) ] - [ (9 x 7) / (5 x 7) ]
(335 / 35) - (63 / 35)
(272 / 35)
Hope it helps you